I would look at a 4.25 stroke with BB Chevy rod journal sizes, this will increase the torque and HP s well as reduce the recriprocating weight, which will help the motor accelerate faster I have built several of these motors but not with those heads or cam. I would shoot for 10.5 to 1 compression


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)