Edelbrock part #71011 Performer RPM intake manifold is designed for 1955-86 262-400 c.i.d. Chevy V8's, for maximum power and a broad torque curve for high-performance street/marine engines. Provides power like a single-plane and throttle response like a dual-plane. Has provisions to machine for an oil fill tube. No provisions for exhaust heated or stock-style choke. Accepts late-model water neck, air-conditioning, alternator and H.E.I. Will fit cast iron Chevrolet Bowtie heads, but will not fit 1987 and later cast iron heads. Intake manifolds will not fit under stock Corvette hood. This manifold offers a polished finish for a brilliant shine and classic look.