Computer Controlled Hydraulic Flat Tappet CamshaftRPM Range: 1000-5000Lift: .425"/.440"Advertised Duration: 252�/260�Lobe Separation Angle: 112� For use in throttle body, crossfire, and carbureted 305 engines265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10For use in throttle body injection, crossfire and TPI 305 and 350 engine.