I know this is the place to come to find out if I screwed up or not, so here they are. '70 340 J heads with mopar performance 1.5 ratio roller rockers with shafts. Ported & polished to match a standard Felpro gasket on intake & exhaust, the bowls recieved minor porting. The valves are stainless Manley 2.02/1.60, the springs are Comp cams single springs and are good for .585" lift, the keepers and guides are all steel and the seats are hardened. They were bolted on the motor and never run. Any comments are appreciated!