It's all ok, Dan. Pretty much any factory small block 4bbl set up from '68 - 84 would work great on a 318. No set of exhaust manifolds will flow like headers, however, manifolds and good dual exhaust will certainly help any stock 318. I've done 360 heads on 318, and I've always gained performance but I cut them .040. Keep the cam small in a mild 318 build. 212 @ 050 and .440 lift is a nice improvement. I have a lot of "low dollar- back yard" builds on my youtube channel. You might find some of them interesting. my channel is - 318willrun :)
