Chev Big Block 454 Edelbrock Performer RPM Air-Gap Intake Manifold # ED75613Chev Big Block 454 Edelbrock Performer RPM Air Gap Intake Manifold # ED75613 Intake Manifold, Performer RPM Air Gap, Dual Plane, Aluminum, Black, Square Bore, Chevy, Big Block, Oval Port Intake Section Included: Complete Engine Block Deck Height: Standard deck Carburetor Quantity: One Intake Style: Dual plane Basic Operating RPM Range: 1,500 6,500 Intake Manifold Height: 5. 220 in. Intake Finish: Black powdercoated Intake Material: Aluminum EGR: No