After doing some checking around i was refered to crane cam #113522 .050 duration I= 218 E=230, Lift I=.459 E=.486 with #11308-1 for springs. The head that are on i am assuming are just stock so 76 or 72cc. Also, i am going to get some 1.5 roller rockers. I had also thought of putting a electric fan on to free up some hp, are these ideas good or not?????? thanks