Description: 100% brand new and high quality Strongly recommended for professional installation (no instructions included) Specification: Material: Aluminum Finish: Satin Intake Manifold Type: Dual Plane Intake Section Included: Complete RPM Range: Idle-5,500 EGR: No Overall Height: 4.25" Port Height: 1.85" Port Width: 1.15" Fuel System Type: Carbureted Carburetor Flange Type: 4-Barrel Square Bore Bolt Hole Pattern: 5.160" x 5.625" Mounted Height: 4.25" Notes: Recommends a 500-650 CFM carb .