Edelbrock Performer-Plus Camshaft #2112 is compatible with 200-229 Chevy 90 Degree V6 engines and produce optimum torque from the low-end to the mid-range. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. The Performer-Plus #2112 is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you'll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams compatible with stock roller lifters), assembly lube and instructions. For non-computer controlled vehicles and non-roller applications. Camshaft specifications: - Intake duration: 204 Degrees - Exhaust duration: 214 Degrees - Intake lift: .420" - Exhaust lift: .443" - Lobe separation: 112 Degree - Intake Center Line: 107 Degree - Vacuum: 16"