carb question (mechanical or vacuum)

[Hank70SS]

I agree with Mike on the size of the Carb. On a small block street car what he has should do the job just fine, I will disagree a little on mech vs vac. For a street car, regardless of trans, I would say vac secondary.

I'm running a 770, vac secondary on 4 spd 454. It's a street only car and not a high reving engine. It feeds the engine just fine no with fall off through out the rpm range.