Hi guys How good was the 4 barrel Rochester carb ? on a 64 327 ..should I up grade or are they decent ..? mine will be 40 over with a L 79 factory intake and heads I believe they are 10.5 comp 250 hp Thanks again chaps
The higher hp 327s had a carter afb, my 59 had a 4gc and i had lots or arguments with it. I went to a quick fuel on it, that worked perfect after I detuned it for the 283, it was a 600 Cfm. It is a Holley knockoff, very well built.
You need a leather accelerator pump whatever you get, I got a carter afb for my 409. It has worked great. The Edelbrock is a copy of the afb, just not as well made imho.
one thing if you switch carbs is most replacements have a larger opening and you need an adapter to use the original air cleaner or else a replacement base for the larger opening, sold by Show Cars.
-- Edited by DonSSDD on Sunday 11th of November 2018 01:42:20 PM
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic
ran one for years on a 350 horse, only problem I had it would run out of poop at the top end. I think its only a 475 cfm, I also stole some bigger jets out of a 2Cg, I also ran a 409 rodchester on a 327 , had to jet it down, snappy throttle response because of its size and great fuel mileage.
Thanks Don..my 283 has a new Edelbrock so I'll prob just use that,,funny you mention the factory air cleaner I have been trying to make the ugly thing look better ,really dont know how they get much air but figured go with a stock type look?? but not sure now after knowing about a adapter..anyways it will look good sitting in the trunk lol
Show cars sells both the replacement base and the adapter, adapter cheaper and you may get it local or make one.
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic
