Edelbrock 75624 RPM Air-Gap 2-R Intake Manifold Features: EnduraShine Version of Edelbrock PN[7562] Based on Performer RPM-Series with Unique Air Gap Air Gap Cooler and Denser Mixture for More Power Designed for 1500 to 6500 RPM Street-Driven Power Dual-Plane High-Rise Intake w/180 deg Firing Order Produces Incredible Top-End Horsepower Retains Good Throttle Response and Acceleration Larger Plenum and Runners Maximizes Other Upgrades Height: 7.00 Width: 12.10 Length: 23.50 Weight: 22.50 lbs Fitment: 1989/GMC/V3500/Sierra Classic Standard Cab Pickup 2-Door/7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated::N/ARecommend Edelbrock Gasket PN[7202] for Manifold Gasket~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps^^1989/GMC/V3500/Sierra Classic Crew Cab Pickup 4-Door/7.4L 454Cu. In. V8 GAS O...