Fresh pro built 358 cu. in engine. Dyno time only. 15 degree NASCAR Pontiac aluminum heads ported by Indy Cylinder Head. Best of everything. Crower, ARP, Eagle, GM Performance, Wiseco, Canton, SCP, Moroso, MSD, Stahl. 658 HP. Includes dry sump pump, starter, MSD tach drive distributor, and Stahl cross over headers. Race ready, just add carb and go.