Engines » 535 cu.in. Butler Performance Pontiac with a BDS 8:71 blower

535 cu. in. street engine
820 HP and 860 ft/lbs of torque (at only 3800 RPM!!!) and on pump gas!
535 cu.in. Butler Performance Pontiac with a BDS 8:71 blower, CNC ported Edelbrock heads, BP/COMP custom hyd roller cam, and FAST XFI. We also added a full serpentine belt system with all accessories including AC. This is going in Tom's 1965 GTO with a Tremec 5 spd.