Edelbrock part #5002 Torker-Plus Camshaft is designed for small-block Chevy 283-350 V-8 applications. The camshaft works well with Torker II manifolds for performance from 2500 to 6500 rpm, this camshaft is ideal for high-performance street, drag or marine applications. Torker-Plus cams have a slightly rough idle and are not suitable for trucks or towing applications. Hydraulic flat tappet lifters are included with each camshaft. Camshaft Specifications: - Duration @ .050 Intake: 232 degrees - Duration @ .050 Exhaust: 234 degrees - Lift @ Valve Intake: .488" - Lift @ Valve Exhaust: .488" - Lobe Separation: 108 Degrees - Intake Centerline: 106 Degrees