Edelbrock 2561 - Marine Performer RPM Intake Manifold, Chevrolet Big Block 396-502, Oval Ports

Edelbrock Performer RPM marine intake manifold is designed for spread-bore carbs but also works with Edelbrock square-bore carbs without an adapter on street 396-502 c.i.d. Chevy V8's with large oval-port (1975 and earlier) heads. This marine intake features brass-lined water passage and brass flange inserts to cover rear water openings. No provisions for hot air style chokes. Accepts divorced choke, late-model water neck, air-conditioning, alternator, and HEI equipment.