How About Building Me A 318

It's sounds like a fairly stock build it's mainly down to cam choice maybe heads if your willing to go that way. I'd get CR up to 8.8-9:1 range a cam in the 210-215 range, and head choice for hp level stock heads under 300 hp ported above or a set of 360/340 or speedmaster etc.. get you somewhere 325-375 hp depend what's done.