Chev 454 Edelbrock Performer RPM Air-Gap Intake Manifold Black Plasma ED7561-BPChev 454 Edelbrock Performer RPM Air Gap Intake Manifold Black Plasma ED7561 BP Intake Manifold, Performer RPM Air Gap, Dual Plane, Aluminum, Black Plasma Coated, Chevy, Big Block, Oval Port, Std. Deck 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 plasma coated Intake Material: