Features: Polished aluminum finish 180° dual plane high rise design for outstanding power from Idle to 5500 RPM Cast-in bosses on intake runners, can be drilled and tapped for use with nitrous injectors Square bore carb bolt pattern for the Holley 4150/4160 style carburetor Ideal port position - allows custom porting for maximum power Dual distributor hold-down provisions for extra protection against distributor rotation Four corner water outlets Accepts late-model water neck, air-conditioning, alternator, and HEI brackets .
