stage 1 is best parts all there 1/2 done form intake to pan gn1 heads cnc port 2 cams soild or hyd tD roller rocker je piston block crank 10/10 and blockis a 252 to much to list call if to know more thank you street motor is a strong 1 10.96 125 20pd 20degree i drive it . roller motor .call 1-847-878-9055 north il thanks