dual carbs, with adapters and offy intake. not sure how much a better intake would help but space is at a premium. 10 h.p. at redline isn't worth it, 20 at cruising rpm and I will make it fit! biggest fear on cam is losing power where I need it to gain on the top, don't need bragging rights on the dyno, just leaving the red light. turbo or blower is past my skill level so a HUGE learning curve for tuning, kinda goes against my original goal of a simple carbed straight 6. avoided e.f.i. to stay simple and period correct. a modern engine would of been more practical and logical, I am way beyond that!