yogi |
14 years ago in HELP IDENTIFY
I have a Rochester Q-Jet that is for a 1976 Cadillac 500CID. Done a little research and still question whether Cadillac only used 800 CFM on this year. Clearly, it's marked for the 76' year, federal emissions, auto., and yet, when I look down into the primary bores I can see that it has a raised annular ring, which I've read indicates a 750 CFM. The Carb. Ident # 17056230.
Answers (4)
Ok-- finally caught up with my friend who runs the carb shop. According to him, GM never rated CFM of Quadrajets. The number you gave me identifies it as a '76 Cad carb on a 500 cubic inch engine. He said the base needs to be taken off, and the ones that flow more the bores will be more of a round shape than oval. However, as he pointed out, when you have that many cubic inches (500) sucking air, it will definitely pull more air than if it was on, say, 327 or 350 cubic inches. Some of the Cad carbs according to him would pull up to 800+ CFM. Hope this helps.
It's 0-8-2-6
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