Hi i'm mike a new member. Why dont you check the Scat or Eagle rotating assemblies, rings and bearings and it's balanced. I've built a bunch of race motors and a lotta street motors. Nuthin worse than an over cammed hi compression street car. Do your homework on your chamber cc's. Course you gotta clearance your block and keep your cam bout .480 lift and 230 degrees @ .050. That cam should clear your rods ok. With a 700 carb should make 380 to 400 HP. And get 15 MPG. I gotta motor like that in a 71 Elcamino and it's a mustang eater. Ha