Hi all, long time since I've posted, would anyone know the Edelbrock equivalent to the Carter AVS 4429S ? I'm looking to replace my tired old Holley 4160 in the spring.
Joined: Sun Feb 26 2006, 08:46PM
Location: Kingston,Ontario
Posts: 5622
Brian, I assume your car has a 440. 440's do build up and hold heat quickly and for a longtime respectively..
What works very well (and speaking from my personal experience) is the Edelbrock Performer 750 CFM. Get the electric choke,and the Chrysler throttle linkage adaptor.You will have to rob the stud from the Holley throttle linkage. If you are not concerned about "looks" but want drivability and be reliable that is the way to go. Keep in mind they are set lean from the factory, and I suggest to run and experiment with metering rod sizes and possibly jetting if need be for optimum match to your engine's specs.
While you are at it, here's a couple of tips I strongly recommend.. Today's corn swill called gaz does boil and evaporate quickly. The octane levels even in the "Contains No Ethanol" blends is a far cry from what your car used to drink back in the day. 1.Remove the intake and block the exhaust crossover. Why? With electric choke, you don't need it PLUS drop temps underneath the carb for easy hot start-ups. Saves wear on your starter, too An intake gasket is cheap,sometimes they come with the block off's. If not, just cut up the old one to make a couple pieces. Torque in sequences and in 40-60-80 ftlbs torque. 2. Installing a 1/2 spacer under the carb reduces fuel temperature even more. Bonus is a better charge and more bottom end torque. Not to worry, it should clear your hood if you are still running factory air cleaner and intake. If you have to,run a generic open element drop-style air cleaner unit. 3. Get some heat sheathing for the fuel line going to the carb. Hope this helps!
Joined: Sat Aug 19 2006, 05:03PM
Location: Ontario, Canada
Posts: 2919
I don't know what year they changed (Leaburn would probably know) but the stock air cleaner on my '66 won't fit on a newer AFB/AVS because the throat on the carb is larger than on the air cleaner base. If I knew what to look for at a swap meet, I would like to find a different base so I can run the stock air cleaner on my convertible again.
I would spend a bit more and get the Edelbrock AVS, which has an adjustable air door on the secondaries for better tuning. They are available in 650 and 800 cfm. I have an AFB 600 on the 383 in my convertible and an AVS 650 on my 451. The AVS is a good carb, but I always wondered if I should've gotten the 800 instead for that engine.
As Leaburn recommended, get the corresponding rod and jet kit to go with the carb, as it will probably need fine-tuning. Also, before installing it on the engine, double-check the settings as per the manual. When I went over mine, the floats were set to two different levels, and I think I needed to adjust one of the linkages which was out of spec.
Joined: Sun Feb 26 2006, 08:46PM
Location: Kingston,Ontario
Posts: 5622
Mike, I believe 1968 was t he year they went to the larger base. My factory 68 single snorkel air cleaner fit the Edelbrock and Carter carbs with no mods.
Joined: Wed Dec 21 2005, 07:34AM
Location: indiana
Posts: 791
Slightly-old thread, I realize.
I believe 67 was actually the first year for the 5 1/8", but only on the 440 engines. HP got a Carter while the 350hp 440 got a Holley. For the HP, though, possibly Calif cars or maybe some AC cars got a Holley, though?
68-up all 4-barrels were the 5-1/8", and all 2-barrel were the 4-1/2" (same as the older AFB carbs).
Depending on what year of OEM intake manifold you use, the throttle blades will rub on the intake. I suspect you'll have this issue on any intake that was originally used with an AFB.
You'll also have a difficult time getting the factory divorced choke setup to play well with a manual choke setup on a new Eddy carb. I never had any success doing that, anyway, despite some effort. I always use an electric choke.
FYI - elec-choke carbs tend to have an 'economy' rod/jet calibration, while the manual-choke versions have a richer calibration. But you can buy the choke kit and add it to a manual/rich carb.