Join Date: Mar 2002
Location: Austin, TX, USA
Re: Carburetor Confusion...
This thread is discussing two different types of carbs. The Q-Jet (and the Edelbrock?) are spread bore carbs. The Holley carbs are square bore. Each require a different intake manifold. I'd figure out what type of intake you have and use a carb that works with it. I'm not a big fan of adaptors to make square bores fit on spread bore manifolds and visa versa.
That said, if you go square bore, I'd stay below 700cfm if you want to avoid major tuning and performance headaches. If you go spread bore, put a 750 on it.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI