Looked at re-jetting and installing stiffer pump springs but don't know if its still worth it in the long run. Carburetor Height - Summit Racing Equipment Carburetor Flange Guide - Holley Motor Life Holley recommends their "sticky" gaskets to seal properly and that's what they come with. The Edelbrock looks to be easier to change while on the road because of the external access of the metering rods. Quadrajet vs Edelbrock questions..-gctid765084 - BAYLINER ... Designed to deliver the signature Rochester Roar at Wide Open Throttle! Probably one of the best facilities around. I don't like holly carbs, they are hard to work on and dump to . Re: Was going to be a qjet rebuild, now Holley vs. Edelbrock. yeah but i think you'd have to admit that althought the Holley is a much better carb on the track that for the average Joe, the Edelbrock is much more easily maintained than the Holley which is probably why i see more edelbrocks installed on SBC's than anything, but performance id give the edge to Holley but they do require routine tuning for the street. Joined: Jul 28, 2007. So the only options are to rebuild the Q-Jet again, or to replace with a new Holley 4160 which was used on these engines from '90 on up to the end of carbed engines (OMC up through '98, and Volvo . Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. Holley Spreadbore and Quadrajet - Holley The primary metering circuit is designed similarly to the GM Rochester Quadrajet by employing the combination of a main jet with a metering rod. Edelbrock/Carter AFB vs Holley 4150/4160 and variants ... $356 new. Holley VS Edelbrock Carbs: Adjust-ability & Tune-ability ... The worst Qj got appoximately 14% better fuel economy than my 600 cfm Holley. Re: Rochester Quadrajet to Edlebrock 1410 Conversion? Mechanical secondaries. Also, I'll take a Q-Jet any day over a vacuum Holley. Quadrajet vs Edelbrock? | NastyZ28.com Well my 29 year old QJet is starting to act up again; it was fine all season. Should I swap to a Holley or a Quadrajet? Jul 5, 2001. The circuits, bleeds and feeds are essentially the same. By Vinny Perozzi Holley/MSD releases the Sniper EFI Systems for Quadrajet applications, which eliminate the need to continually rebuild 50-plus-year-old Quadrajet carburetors on classic Chevys, Pontiacs, Buicks, Oldsmobiles, and GMCs. It was absolutley the most trouble free and best peforming carb I have ever had. The throttle body will support up to 500 horsepower naturally aspirated. Requires external fuel pressure regulator such as: part # 12-886 or 12-879. Re: Webber VS Quadrajet VS Holley VS Eldlebrock. Quadrajet replacement options? - Forums - Official C3 ... A little slower on 1/4 mile times but hardly noticable. . We have noticed better throttle response and MPG with a 500 cfm Edelbrock Thunder on a 350 when towing heavy. Comp Cam hydraulic roller cam 230/236 @ 50 A better than average 400 HP street performance engine. Drag Racing, Holley, simply due to parts availability. Gets better gas mialage than the 2 barrel did, and his buds about choked when they seen it. Mike Edelbrock's .this is the first one and came with the the '52. The Sniper EFI Quadrajet™ retains the same great features as the 4150 Sniper EFI version such as; four 100lb/hr Injectors, built in timing control, a 3.5"full color touchscreen and much more! Edelbrock just came out with their 800CFM version of the Carter, and I have 2 of the 750 CFM carbs, one a true Carter and 1 is Edelbrocks version of the Carter. The difference was stunning. They used to make a marine double pumper that was absolutely simple. I believe you are right in that engine size would dictate jetting and overall fuel flow. The Edelbrock ran much better, idled smoother and improved gas mileage. The AFB is shaped far differently from a traditional Holley 4150/4160 carburetor, and the mounting pattern can be different, but modern Edelbrock variants are produced with two bolt patterns and will fit on most square-bore manifolds (as compared to the spread-bore variety used with a Rochester Quadrajet). Replacing my old Rochester Quadrajet with an Edelbrock 1406 carburetor. How "buildable" are Q-jets? /build/vs2013/davs2. The competing intake is an Edelbrock Performer RPM. It has a 283 with a Quadrajet right now. It's in a '69 Chevelle, TH350, 3.08 rear. (click to see a larger image) Reply. The Holley is cold-blooded. which one would you choose? dist. Re: edelbrock vs. q-jet ?? As a first suggestion, I would look at the fuel pressure. Buy in monthly payments with Affirm on orders over $50. You know, the rod with a 3XX-something SBC, Edelbrock valve covers, Edelbrock air cleaner, Edelbrock front cover, Edelbrock pan, Edelbrock thermostat housing, Edelbrock headers, Yawning viewability. 600 Cfm 4 Brl Holley Vs Quadrajet . Dan. Looking at both Edelbrock/Carter AFB design and technology vs the Holley 4150/4160 and variants (Proform and Quick Fuel). Now this series of dyno pulls was on the Westech Performance dyno. Rebuild Kit for Edelbrock Quadrajet Carburetors. If you have the COMPUTER CONTROLED Q jet your dist is a CC HEI. The bog on a Holley truck avenger (or on other Holleys) can be caused by not enough timing, accellerator pump cam adjustment, or an improperly sized power valve. I have a holley 600 on my 72 vette, with an edelbrock performer intake, that works great. The regular 600 cfm vacuum secondary Holley that I have would run circles around the 750 Edelbrock that I recently tried on my mildly built 400 small block. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Carter/Edelbrock, tried several. The Edelbrock starts and runs better in cold weather. Sniper EFI Quadrajet™. In addition to all of these great tried and true features, the Sniper EFI . The Edelbrock (or older Carter) style would be my choice for street use, as it has smaller primary venturies and is capable of delivering better mileage. Quadrajet Hi Lep; If you remember where we left off on my Tripp it was a discussion of the Holley vs the Qjet from my old motor. The Holley would be my carb of choice if I were to road race the car, as the center hung float bowls style is superior on cornering. I. Our off road buggy runs a 670 Holley truck avenger on a 400 SBC, the Q-jet couldn't handle the jumps and slopes and flooded alot. They both had similar power on my engines, but the Carters usually gave me 4 mpg. 1972 Nova - 454 LS7 - ATI Turbo 400 - Moser 3.73 Wavetrac rear 1967 Sedan - 406 - Powerglide - Moser 3.73 rear - Holley Super Sniper EFI with a shot of Nitrous. Here is what . I bought and installed an Edelbrock square bore and did not need an adapter. I believe you are right in that engine size would dictate jetting and overall fuel flow. Summit racing sent us four of the most popular off-road carburetors including a Holley 750-cfm, a brand-new model Holley Street Avenger 670-cfm, an Edelbrock Performer 750-cfm, and an Edelbrock Q . I have an edelbrock performer intake. Edelbrock is the most respected name in performance. holley's are cool lookin but thats the only thing good about them in my book. Rochester Quadrajet Rebuild Part 2 Automotive Repair Automotive Mechanic Chevy Motors . The AFB and AVS can easily be modifyed for racing and can beat Holley and Q-jets in performance. ______________. Stick with your Edelbrock, or get a Quadrajet. Gasket Carburetor Adapters, MRG1929, Mr. This is a 1984 Chevy K20 3/4, just a yard truck for plowing my property. Tried a lot of Holley carbs too. Cfm Rating On Rochester 2 Barrel 7041114 The H A M B . Holley 0 80350 350 Cfm Street Avenger Carburetor The obvious choices (for me, at least) are Holley vs. Rochester Quadrajet, so I have a few basic questions. Re: Was going to be a qjet rebuild, now Holley vs. Edelbrock. (ie 750 cfm, 800 cfm) There is also the number of Vacuum ports as needed by the particular engine it was meant for. got on ebay and bad deal at the end. what i've read is people saying it works almost as good as the truck avenger and better than whatever 4wd carb that edelbrock came out with. holley, weber/edelbrock/carter = fuel waste, load up the engine at idle and off idle speeds, and very finicky to get idle mixture dialed in - oh yeah, they're great if you wanna go wide open ALL the time. It does NOT include any base or air cleaner gasket thickness. 6. Quadrajet vs Edelbrock questions..-gctid765084 09-15-2016, 02:59 PM. It has that old school gold finish. HOLLEY VS EDELBROCK directly comparing the holley carburetor and edelbrock carburetor. About Edelbrock Quadrajet 1906 Vs . Easy to set up, no worries about the secondaires. Quadrajet: great mpg and more conservative instead of dumping fuel it uses only what is needes. Edelbrock kinda sorta copied them for their Performer carbs but didn't quite get it right in my opinion. They are dependable for sure. I retrofiited a small block chevy marine motor from a Holley to an Edelbrock. 037 metering rods; orange (5" Hg) step-up spring. Page 1 of 2 1 2 Next > Sep 11, 2020 #1. But the Street Avenger might actually work better for me because it has an extra full mamifold vacuum port. I'm planning to swap my quadrajet MV 4 bbl with the edelbrock 1410 - the quadrajet aren't true marine carburetors. Re: edelbrock VS. holley carbs... a while back my son and I out an edlebrock carb and intake on his truck (650 cfm) with the high rise intake. cant remember the name. Except getting those things off with a power valve change takes time and patience. Location: Woodstock New Brunswick Canada. Please note that a Quadrajet is a spread bore and will require a different bolt pattern than a square bore, such as a Holley or an Edelbrock Carburetor. Jan 31, 2014. i have read the q-jet is extremely reliable once tuned properly and also a good carb to use for 4 wheeling. Only show this user. Learn more. $300.00 is a good price for the carb, cost me more to rebuild my quadrajet on the 81. Quadrajet vs. Edelbrock. Posts: 4877; Re: Was going to be a qjet rebuild, now Holley vs. Edelbrock « Reply #20 on: March 17, 2013, 02:16:51 PM . They started making them in 1975 and ran threw 1990. Airaid Holley Spread Bore/ Edelbrock Quadrajet PowerAid TB Spacer. 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