This 434 Chevy engine packs 650 horsepower in a naturally aspirated small block package! The foundation is a World Products Motown II block, all forged internals, topped off with AFR heads, a Comp Cams hydraulic roller valvetrain. The fuel and ignition are controlled by a Holley Terminator X TBI. A serpentine accessory kit from Holley takes care of everything on the front end. This thing jumps off the ground when you hit the throttle. We’re really happy with how it turned out.