Competition Cams CL12-242-2 Features: Produces Better Throttle Response Produces Top Engine Horsepower Delivers Increased Engine Vacuum 1 Year Limited Warranty Height: 3.000 Width: 5.500 Length: 26.000 Weight: 13.02 Fitment: 1988/GMC/G3500/Vandura Standard Cargo Van 3-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Stock Springs Cannot Be Used~ Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle^^1988/GMC/G3500/Vandura Special Cutaway Van 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Stock Springs Cannot Be Used~ Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle^^1988/GMC/G3500/Vandura Extended Cargo Van 3-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Stock Springs Cannot Be Used~ Not Legal For Sale Or Use On Pollution-Controlled Motor Vehicle^^1988/GMC/G3500/Rally STX Standard Passenger Van...