NEVER put a 750 on a 318........

fishmens67 said
I see no reason or gain using a 750, a properly tuned 650 dp would be perfect for most 318's. imo

Personally around 350-400 hp I’d think about stepping up to a 750 no matter the the cid.

under 350 hp definitely 600-650 cfm, would find it hard to find a combo where I’d go less.

But I don’t think 750 is need for under 350. -400 hp but don’t really think it’s over carbing either