I think instead of the old fuelie heads, get a set of world products heads, the torquer heads, small comb. chambers,like 58cc 62,3 cc, gets compression up, add extensions on the headers collecters, to build torque and Im not sure about that cam, I have other ideas for that but,I know some of this has been said already but we all mean well and I think we tell it well!!!! I know you can still have fun with this combo, David.