Butler Performance unveils their new ULTIMATE PONTIAC STREET ENGINE
Butler Performance 535 cu.in. engine w/ IAII Block and our CNC Race Ported Edelbrock Heads ( std. port version ). This engine features a very PUMP GAS friendly 10.9:1 c.r. and a Butler Performance custom ground Hydraulic Roller cam for excellent, drive it anywhere streetability- and very low maintenance, just drop it in and enjoy! This engine makes 700+ horsepower!!