DESCRIPTION --Finish: Satin --Material: Cast Aluminum --Fitment: For Chevy Small Block 265 350 400 engines --Basic Operating RPM Range: Idle To 5500 RPM --Intake Manifold Height: 4.8" --Intake Style: Dual Plane --Carburetor Quantity: One --Cylinder Head Type: Standard --Engine Block Style: Stock/OEM Standard Deck --Air gap design keeps hot engine oil away from intake runners resulting in a cooler, denser charge for more horsepower, torque, and efficiency. --Package: Including all items in the picture. Note: Professional installation is highly recommended (No instruction included). Your package will be shipped from multiple warehouses.