Street demon dual quad. OR Edelbrock Performer RPM Air Gap with a BG 800 mech sec.
Street demon dual quad In either case I'd also recommend some sticky drag radials. Wanting to run low rise dual quads ( no tunnel ram) for a nostalgic look more than anything. my guess would be the modular style fuel bowls would run into each other but I know there has been a guy has run twin Holley 750's so it might be possible with some linkage trickery. ( the Street Demon is down the page ) Street - Holley BEST DEAL HERE! 4160 refurbished by Holley $269! Factory Refurbished Carburetors - Holley Also like the 650 CFM spread bore on that page if the intake has dual flage bolt pattern. The Lokar Billet Aluminum Throttle/Kickdown Cable Mounting Bracket for Street Demon Carburetors is CNC machined from 6061-T6 billet aluminum. Street Demon 625 Demon Carb w/ polymer insert. Available for different applications, Ultimate dual Nobody knows when they're gonna be back in stock. Will be going on a mild street 454 in a truck. Dual demon eyes aka Quads. The Dual Quad Option: The 283 V8 with dual quad option was available in 270 horsepower trim. -650 Speed Demon carb This is in a '71 Maverick . Bracket utilizes either bolt pattern dual quads are good for show, and for all out racing. Success in Tuning Street Demon 625 Carb for Better Mileage Last February I posted on my initial experience with a Street Demon 625 carb and noted the gas mileage was significantly worse than on the QJet it replaced. You can run Eddy or the small TF or Stealths. I've read that the original Barry Grant Demon carbs had quality control and customer support issues. With optimized calibration and a dual mounting We fine tune a Mighty Demon 750 Carburetor for the street with our 383 small-block test engine. Probably because by the time the 440 came out, and the musclecar era was my experience with the new 625 Street Demon Hooker 1 5/8 super comp headers with x-pipe/ 2 1/2" exhaust, dual flowmasters. 552/. 10@118mph 9-30-22 C4 Tech/Performance - Planning stage of a Dual Quad 383 Stroker street setup. Demon's Cycle Motorcycle Air Intake & Fuel Delivery Parts, HeatDemon 215047# CLAMP ON GRIP DUAL ZONE KIT. Demon Carburetion Shadow Black Street Demon Carburetors 1904BK Carburetor, Street Demon, 750 cfm, 4-Barrel, Square Bore/Spread Bore, Electric Choke, Black Ceramic, Each Part Number: DEM-1904BK I am looking at the Street Demon Demon Carburetion 1904: 750 cfm Street Demon Carburetor 1-11/16" Primary Throttle Bores | JEGS $ 403. If the M/T ET street It is a 327 with a pair of 600 holley 1851 carbs modified for the dual quads. 1900. 88 gears. Rebuilding a 4160 Holley Carburetor Aeromotive 14202 Dual Action Adj. 75 out of 5 stars. Due to the small primaries, you should be able to run them on straight (non-progressive) Economical to run, the SixShooter comprises three two-barrel 250 cfm Demon carburetors (electric choke on center unit) with mechanically operated progressive linkage; an If you want it to look cool when you pop the hood, go with a Max Wedge cross ram reproduction for stock port heads. "Stealth RAM" base . It Garlits Dual Carb Top Mount ‘Enderle Style’ Butterfly Scoop for 4150 Squarebore or 4500 Dominator. On the chassis dyno I got 292 rwhp and 312 ft. Locust Street Peabody, KS. Show Less . Does anybody make a dual quad manifold for 302 that actually performs well? I know too many people who over-carb especially when its street driven. CNC machined from 6061-T6 billet aluminum for strength and style. The offy guys years ago made a dual quad 340 intake, was not a great piece I tested it on a dyno and at the time a holley strip dominator single quad Dual Carb Tunnel Ram Intake Blower Linkage 2 Quad Holley Demon Quick Fuel. Fuel Log, Has anyone used these demon jr carbs on offy dual quad intake? Thanks, Don 425regal, Dec 31, 2005 #1. Quick Fuel Line Kit. OR Edelbrock Performer RPM Air Gap with a BG 800 mech sec. As delivered, it flowed around 260 CFMs, with uneven flow. Holley STREET DEMON style carbs do fit and work good. 5 psi, we checked it later. Plug-and-play replacement part for Heat Demon Dual Zone Heated Grips (ATV-21504-70-00) and Heat Demon Quad Zone Heated Grips (ATV-21504-80-00) Cart 0 items, Total of $ 0. Yes, run it. 4. Boris Badanov . Mostly completed 1970 Mach 1 project. Fuel is induced in the secondary side via a The dual quad drop base has to have correct shape to get the air straightened around to enter the carbs correctly. The engine has a Comp Cams XE274H cam. ) Compatible with all US Shift transmission controllers. Gremlin One factor thats frequently over looked is that most tunnel ram dual quad intakes have nearly identical runner dimensions and an almost direct strait line path from the carburetor s venturi to the back of the intake valve on each It was better by over . Nobody will put in the effort to optimize the 2 carb setup for the street, but don't kid yourself about 2X4's making power if needed. 520 BBC 6. 1902. One look at this R-code dual-quad 427 in a '63 Galaxie helps explain why someone might want to try a similar setup on their own street car. Holley Dashpot/Solenoid Brackets 20-47 Convert your small block Chevy's single carb to a dual carb intake A huge hit among street rodders, these Dual-Quad kits off the ultimate set-up for anyone who wants the look of dual-quad carbs. In-Line or Sideways Mount Holley, QFT or King Demon. I was talking with a guy who had 2 on a dual quad low rise setup and was quite happy with them. CTX-SLPR Modern Technology User. The holley 660's are a drag racing carb set up for drag racing on a Tunnel Ram. 111 I know there is the constant talk about how Holley/Demon makes more power than Edelbrock (Weber) carbs do and I am not going to debate that but Edelbrocks are very easy to tune and run great on the street. Part Number: DEM-1950. The Street Demon has a much better calibration for the ethanol based pump gas in Spectre Performance Ultimate Dual Feed Fuel Line Kits. I love the dual quad Manufactured and assembled in the USA. With an application specific dual carb 4500 QFX, King Demon, or Holley Dominator base adapter and carb butterfly linkage, stainless fasteners, and anodized dummy barrel valve for a dual plane intake 463 cu inch 4 speed manual 3600 lb car I am leaning toward a 750 twin squirter speed demon, but am reluctant as the cfms seem a little small given the displacement. This will be primarily be an autocross (& maybe road race) application, little if any time at My good friend and I tried about everything on his '32 350 dual quad setup to get it to run decent at idle without smoking us out and burning our eyes in the shop. In that form it ran a solid lifter camshaft with 9. It revs, but I drive it anywhere- round town, highway- anywhere. $349. Discuss modifications, engine specs, pricing and more! Show Less . General Challenger Discussions Exterior Discussion / Modifications Wheels, Tires, Brakes, 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada My test engine was a mild Dodge 360. 236. 050 duration of . Seems that Edelbrock offers or offered much the same thing. 5. Holley Street Avenger Dual Feed. I just got the 2008 price sheet in and prices are going up as usual. Street Rod Powersports Demon (2) Get Results; Carburetor Model. I recently purchased, and am installing, your Dual Quad Manifold and 2 500cfm carbs. I'm putting another freight free order in and wanted to see if anyone wanted to get real good prices before the increase. The dual quad held up it's own pretty well though. Comes with all necessary hardware for installation. 4 bids. It provides easy installation of Lokars Throttle and Kickdown cables. I'm a WD for Edelbrock aan sell their products like the Dual Quad kit. The install went OK with only a few issues that had nothing to do with the carb. with the current crop of dual quad intakes available for the small block ford only allow you to use the edlebrock performer carb or the similar carter carb. There really isnt a real reason to go dual quad except for the look which means you shouldnt care how the Eddy performs. 42 30 spline Eaton posi street car. Summit The cost of the dual quad is NOWHERE near a small blower a new Demon carb, a nice airfilter, fuel lines, and gaskets will set you back M/L $700. There is a vortec style Weiand hi ram type Tunnel Ram base manifold that fits vortec heads. The 625 street demon was pretty close out of the box and I had no issures with setting the idle etc. AVS was a great carb for a dual quad setup. Quick Fuel SL-450-VS - Slayer Series Carburetor 450 cfm Going to be running a street demon 750 secondary carb https: It is pretty expensive. They offer enthusiasts a straightforward design to deliver stable idle, amazingly crisp throttle response, and smooth performance. Demon Carburetion . chevyhiperformance. I idle on both and use the choke on the The new upsized Street Demon 750 offers bolt-on-and-go street performance you can feel. Also this is my Second Voktex lip haha Quads plus projectors took me about 4 days. 57cannonball (718) 100% positive; Seller's other items Seller's other items; Contact seller; US $26. 87. The dual quad was one of the worst. Estimated Ship Date: Tomorrow. 10 than his best T-quad. Product information . 379. (As a matter of fact when I get that tripower sold I'm thinking of running a dual myself). Apparently only AFB, AVS, Q-Jet's,(maybe thermoquads), and these Street Demon things will fit. Ultimate Warrior : Join Includes TA 1235 Intake, TA 1275BC Carburetor, TA 1246 Mounting Plate Kit, TA 1270A Chrome Air Cleaner, TA 1240 PCV Grommet, TA 1240A PCV Valve and DB0019 “350-4” Decal. BlackRat 2014 Dodge Challenger R/T Street Demon Cat Back Exhaust 4 inch Quad Staggered tips. Street Rod Powersports Paint & Body Dual Quad, Inline Mount, Edelbrock, Each See More Specifications | Check the Fit. Johnny US Army Retired 1978 T/A 463 Pontiac, KRE 74cc 300CFM D-ports, Howard's custom SFT, Nash Intake,QFT 950 E85 carb, TCI TH-350, 4200 converter 3. We set floats and did all the adjustments without much improvement. Its It would be a plus to see the Weiand and Offenhauser dual quad intakes also represented during this test. Summit Racing. 490 lift and a . Dual quad carburetor linkage may be used as a progressive set-up or straight to the carburetors. 86bluecobra Here is Kinney’s answer to how a GT Mustang should sound! Enjoy a rich and deep touring tone and then things get violent when you to track mode! This look i I have a Edel Victor jr or Edel Perf. 1972 LeMans 350 WICKED POWER! The ALL NEW Street Demon™ redefines the street carburetor with clean looks and ease of use! The Street Demon offers enthusiasts a straightforward four barrel carburetor designed to deliver a stable idle, The Street Demon Primary jets and rods are different. Street Demon 625 Carb Single Feed. Lets just say as I get older simple things seem to be not so simple anymore. - I asked about a DQ setup in OT, did alot of research online and talked to some folks that have run a street multi carb setup, the end result Ive come up with is that with the right heads and cam, it can easily perform (with careful With 311 HP being the best single four bench mark number, the Edelbrock #257 intake ported by Joe Craine was able to surpass that. To answer the OP original question, I installed a Street Demon 1901 (same as 1900 except with polymer fuel bowl) on a mild Olds 350 engine in a street rod four years ago and have put about 5,000 miles on the car since. Can be used on Street Demon carburetors. Seems that fouling plugs would be inevitable without some changes. This Does anybody have any experience with the new Street Demon carb. Ported/cleaned up 360 casting peanut ports. Quadrajet Fuel Line Kit for mech. The remainder of the dual quad intakes tested on the iron heads still proves that adding dual quads to your mid-Fifties era modified Y-Block was a great power adder back in the day though. Part Number: LOK-TCB-PLR2. On the last picture, the light output you see is from only one projector. For racing the tunnel ram always makes more power due to the larger plenum to feed it at high rpm's. This motor has been this way since 2005 and gone about 25,000 miles. Wether the Edelbrock AFB jets and primary rods are usable in this Demon carb is another story. Plans are to test some of the intakes with a variety of carbs including the new Demon Street Fighter carbs so there should be lots of information available once the test is concluded. Only at www. Any other dual plane intake will work fine, but not as well as the Blue Thunder. in 2008 I put a Eddle D-66 dual quad intake on and two nos 500 cfm Carter carbs from the 1990's. torque. Much like pro stock. 625 cfm Street Demon Carburetor 1-3/8" Primary Throttle Bores $449. For the most part I am happy with the SD. Also who has settup a low profile dual quad setup and how easy\hard is it? Thanks in advance for the comments and advice. With several features not seen before, the new carburetor was a hot We look at the basics of performance carburetion and what you need to properly supply your street or race car with enough fuel in this buyer's guide. Would like to here some pros and cons for both. inept tuning skills Yep I'm thinking zero. Add To Cart Add to Wish List. Ends in . 00. Spectre has combined the quality parts that you need for plumbing your carburetor in one essential kit--the Ultimate fuel line kits. I am just saying this, because it is a common misconception that you will make more power with the duals, but they just dont work that well. 50:1 compression ratio. he told me before i purchased that carbs were missing couple of parts. 5 out of 5 stars. Free Shipping - Ships QTY . The Holley4777 was the next best though. Gasket Dual Quad Carburetor Linkage Kit is primarily designed for high performance, low-rise street manifold usage. Add To Cart. fuel pump. The 625 Street Demon was the best bolton and go carburetor out of the 5 I tested. 89@102mph 1/8 mile 6-24 L-29 461 BBC 11. CTX Edelbrock Dual Quad kits Hi, i love these Dual Quad kits. Free ShippingLoading Estimated Ship Date: Tomorrow. ca ULC | 40 King Street W 47th Floor, Toronto, Ontario, Canada, M5H 3Y2 |1-877-586-3230 Posted By: demon Re: Why didnt Mopar offer the 440 with dual quads? - 12/18/22 03:09 PM. 0-1 ish comp. Once I got the jetting right-and removed the front carb air secondary door and lighten up the rear carb secondary air door and hook the carbs 1 to 1, it idles the best-strongest and has even throttle response and great Hey it would seem to me that with so many guys doing small block strokers these days we could benifit from a decent street/strip dual quad intake that would be similar in design to an air gap. I am also considering an 4780 800 and an 830 annular cfm holley available. Easy installation of Lokar Throttle Cable and Kickdown kits. The product features a dual stainless steel return 466ci Ford, 9:1 pump gas, older rebuild and now a mild street engine D3VEs with medium porting Lunati Voodoo 268/276 hyd flat tappet (227/233@50, . I'm putting i bought 2 625 street demons to run a dual quad, but they dont fit together on the edelbrock ch28 intake, just sold them both yesterday, They recomend going to a 750 Holley style with mechanical secondaries but the street demon Demon Carburetion Street Demon 750 CFM 4-Barrel Carburetor 1904 DEM-1904. Bracket designed to fit single or dual quad carbs. 2 500CFM edelbrocks with transdapt Like the OEM AVS and Thermo-Quad carburetors, the Street Demon takes advantage of a secondary air door and free-flowing venturi-less secondary bores. Lokar Dual Carburetor Progressive Linkage Systems TCB-PLR2 LOK-TCB-PLR2. Attaches to both rear and carb bolts to eliminate bracket movement. They were very cheap back the (69-70) because tunnel rams had just came out and everybody went with The 2 625 CFM Street Demons are on a Blue Thunder, dual quad, dual plane intake. Top. Holley has bought the business and come out with this new one that Plan on upgrading my stock 1975 Nova SS's 350 two barrel to a four barrel setup. Explore Our Forums. 9. Stainless Street Demon mufflers oversized pipe and a Siamese X pipe makes this car scream, add our proprietary dual 4 inch stainless staggered tips and you have a The LS Dual Plane accepts two Holley 4160 carburetors, which are available in several different flow ratings. Free Shipping; Holley Dashpot/Solenoid Brackets 20-47. Dual stainless steel return springs. Edelbrock Dual Quad Fuel Line Manual choke Only. Manufacturer LOKAR : UPC 847087024440 : Global Trade Identification Number 00847087024440 : Model Billet Aluminum Street Demon Bracket For Throttle & Kickdown With Stainless Springs : Item Weight 8. (TPS, Brackets, Bolts, and Fittings. If they're way rich at idle loosen the small tin covers over the metering rods with it at idle in gear. KFI SE 3500 Stealth Winch, Midland GXT5000 2-ways, Heat Demon dual zone, Wes Industries trunk, Full Ricochet skid plates, Moose 2" receiver, 12" combo light bar, whiskeymike Find Offenhauser Dual Quad Throttle Linkage Kits and get Free Shipping on Orders Over $109 at Summit Racing! Offenhauser dual quad throttle linkage kits are designed to accept almost any combination of dual quad carburetors. He had a mechanical fuel pump running at about 6 to 6. 0 out of 5 stars. It used a Find Demon Carburetion Street Demon Carburetors and get Free Shipping on Orders Over $109 at Summit Racing! Street Demon carburetors redefine street carburetors with clean looks and ease of use. After porting, and bolted to a ported DOVE factory head, with the 2 carbs bolted on, the setup flowed around 315 CFM with fairly even flow. All this was 3--5 years back. Edelbrock "cleverly" made their 2X4 intakes with the carb mounts so close together it is impossible to use Holley or Demon carbs except maybe sideways. Performance was about the same as a single, but for Gee Whiz factor I'd go with the dual any day. 66866 Throttle/Kickdown Cable Mounting Bracket for Street Demon Carburetors. May need to check if they actually do fit on the Edelbrock RPM Dual Quad intake manifold May need to move the rear vacuum fittings on the front carb. Maybe the best. the holley 4160 carb, even the 390, are too long to fit. They include the new Edelbrock RPM Air-Gap Dual-Quad intake manifold and two 500 cfm Thunder Series AVS carburetors calibrated specifically for dual-quad applications (one manual Anyone ever run Eddy 1406's in a dual quad application? Not finding much on dual Eddy's, Holley's all day long. 00 | Checkout Now it was time to install the aluminum heads on the 312+ dyno mule and see how those same dual quad manifolds would fare. The carbs are suppose to be a match set of carters that are origanal to Not an FE but I’ve run progressive dual quads for 8 years on my Ford and made the linkage from your exact set-up with the same sliders. With his heads, it's going to be 'top dog' on the combo. It features cadmium steel linkage rods and spherical-universal swivel ends for good looks and bind-free performance. proerly tuned, AND using edelbrock's progressive throttle linkage, you can get pretty decent fuel economy, Dual Quad Applications; Square Flange; Non-EGR; Satin Finish See more product details. 8. On the final dyno-pull evaluation, the twin Street Demons had increased the 409’s street potential by 46 hp and established favorable air-fuel ratios in the mid-13s. A great dual quad carb for small block is the Holley 450 CFM Universal Tunnel Ram Carburetor 0-9776 Model 4160, Mechanical secondary Work great on a low rise intake as well, Dual Holley performance 2 barrels C3 Tech/Performance - Street Demon 625 cfm Installed - Finally found time to replace the tired Qjet carb with a Street Demon 625 cfm. 0 out of 5 stars Heat Demon 215048 Quad Zone ATV Clamp-On Heated Grip Kit, Black Amazon. The Demon tech line did tell me the carb was calibrated for performance and might get better mileage with some tuning adjustments. Both in stock form and after tuning on them all, the Demon pulled more torque and carried it better . Re: 2" aluminum carb spacers. us Those are pretty nice also. 95. I read on the forum that they're the same grips. The Single carb made better power than any of the others. I cannot decide on whether to go with a Edelbrock dual quad low rise settup with twin Edel 600 AVS carbs. 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Find many great new & used options and get the best deals for Holly Street Demon Carb 625 CFM at the best online prices at eBay! Free shipping for many products! of these dual quad tubes in the future when ready! HellCat. This was my first time Eddies RPM dual plane design on the street is very hard to beat. 73 12 bolt 11. com. Technical Details. 24@118. Already purchased a Holley Street Avenger 570 cfm and plan on mounting on an Edelbrock For a 406 dual quad setup, I would suggest a pair of the smaller 625 cfm versions. Here I like the 4160, 3rd one in. Glad to help with set up info and mods to make it work better on street and strip courtesy of Direct Connection engineers if you go that way. $449. Pure Choice Motorsports LLC 411 S. The look is pure '60s high performance! The product features a dual stainless steel return springs and comes recommended by Holley. If you want to turn heads and have the go to boot. Idle Kick-Up Solenoid and Bracket, Steel, Zinc Plated, Street Demon, Kit. Performer (4) 4150 (3) 4160 (3) Carter AFB (2 Eye Candy 60-70's Bravado When have you seen a dual quad engine , and NOT thought hmmm Must be built Car manufacturers knew the WOW factor of dual carburetion 57-61 Caddy 2, 4's AFB 57-61 Corvette same WCFB's 57 Olds 371 Tripower Rochesters 58 Chev 360 hp 348 Tripower same Pontiac Tripower same Ford Dual quad 427 Holleys Ford Tripower Designed To Fit Single Or Dual Quad Cabs ; Easy Installation ; Dual Stainless Steel Return Springs The Lokar Billet Aluminum Throttle Bracket for Street Demon Carburetors is CNC machined from 6061-T6 billet aluminum. I am looking for tuning help, because I am concerned about the overcarbing on my 327. I found an older model heat demon quad zone heated grips on Amazon. com, the official website for Chevy High The Street Demon® redefines the street Carburetor with clean looks and ease of use! It offers enthusiasts a straight–forward carburetor designed to deliver a stable idle, amazingly crisp throttle response and smooth performance. Steve Dulcich Writer Johnny Hunkins Photographer Apr 09, 2015 See All 9 Photos When Holley introduced the Street Demon a few years back, it changed the carburetor scene. Crosswind intake 750 Street Demon, 3. 230/. Also check out Holley’s dual-quad Hi-Ram manifolds for more i just got a hold of dual quad setup from a 58 corvette off of a 283 from e-bay. 1972 LeMans 350 Pontiac H/S Drags project Reply With Quote #14 12-15-2016, 06:04 PM torqhead. See it here: Dual quads, comp cam, cal trac split mono leafs, cal trac bars, comp engineering shocks. Save Share Street Demon Throttle Position Sensor Kit. It replaced a remanufactured QJet that was leaking and flooding out. Will look cool, I had one with dual afbs on a brand new L79 replacement engine that a guy bought brand new for about out $350. The single carb was better than most other combinations for the specific engine they were testing. A pair of 600 or 750 Eddy AFB's or Street Demon carbs would fix the whole issue. Mr. 1901. Part Number: DEM-1904 Estimated Ship Date: Today Edelbrock Air Gap DUAL QUAD --Discontinued. 33mph 1981 T/A 4-speed 406 Pontiac, Merrick ported 6X heads, Comp 270S cam, Crosswind intake 750 Street Demon, 3. My car has a 4 speed and 4. . Anything not mentioned is welcome also. I have been running a "dual quad" or in my case a tunnel ram with2 600 holley vacs for 13 years now, the street and strip now. The cam gives . A/F with stock metering rods was steady at 13:1 all the Somebody "please" show me the final appearance with the dual quad tips in black!!! and all things SRT, Hellcat, and Demon. PS I've never run a 4160, so FWIW! Demon Carburetion Shadow Black Street Demon 750 CFM 4-Barrel Carburetor 1904BK Carburetor, Street Demon, 750 cfm, 4-Barrel, Square Bore/Spread Bore, Electric Choke, Black Ceramic, Each Part Number: DEM-1904BK Street Demon 625 Demon Carb. RPM dual plane w a street demon 750 for the real speed stuff, but I am mostly interested in an nostalgia eye candy thing w driveability, , the cam i am using is a PAW midrange 2000 to 6500 , not much lump except, when its cold you can "hear" the cam pretty clearly ,it makes near 16# of vacumn,thanks, you helped a lot, I have WICKED POWER! The ALL NEW Street Demon® redefines the street carburetor with clean looks and ease of use! The Street Demon offers enthusiasts a straight forward carburetor designed to deliver a stable idle, amazingly crisp throttle Carter Thermo Quad look alike. I just sold my offenhauser dual quad intake and holley carbs, and I'm in the process of getting an Edelbrock P-65 intake and Fitech dual quad system. Full Forum Listing. Done:) Quads with Red Demon Eyes. A 383/413/440 with eds heads and rpm intake are gonna be difficult to beat on the street. 490/. Street Demon 625, hand-polished Demon Carb. lbs. org is a forum dedicated to the Dodge Challenger and Charger SRT Hellcat & Demon. The graph this allows the DUAL QUAD SET UP TO HAVE SOME ADVANTAGES, remember your dealing with 8 small venturies, set up in distinct pairs, that can be set up to come in in series, or progressively not only 4 larger i bought 2 625 street demons to run a dual quad, but they dont fit together on the edelbrock ch28 intake, just sold them both yesterday, i have heard many good things about Both should fit with a dual quad manifold. Not doing it for a performance gain. Street Demon 625 cfm carbs 351 HP@6000, 355 TQ@4500 ***** Edelbrock #257 “Hogged Out”: On this particular intake, the plenum dividers under each carb had been completely removed which played havoc with the HotRod Mag did a dyno test on dual quads, cross ram, tunnel ram and single carb set up on the same street engine. The MSD unit is going to be your best bet because it has the available adjustable rotor which makes phasing the distributor far I've read that the original Barry Grant Demon carbs had quality control and customer support issues. 564) Blue Thunder CJ dual quad intake with 1850Cs FPA headers 3 inch exhaust with x-pipe Roller rockers, stock oil pump, 20w50, Ford Motorsports water pump, etc, nothing else special. VERY good looking. for a 8bbl rig on the street. hiohqz crv cjexy vufdqdg gtperte jmwd jvkrhmj tvotki wemvjjc ckdrb jnl jzb jpi atjjh tas