Ok I'll bite. What intakes for what engines are ready? Slant 6? I just wish I knew more about Holley carbs to help out the OP. It seems like the 302 doesn't breathe very well when compared to a simular size SBC even when the SBC has low performance heads. If I had his engine I'd go with a Q Jet or a 400 CFM carter, mostly because I have more experience with these two carbs. Jay