Edelbrock Performer-Plus Camshaft #2122 is designed for 289-302 Ford V8 engines and produces 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 #2122 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 designed for use with stock roller lifters), assembly lube and instructions. This cam produced 310HP and 260 Ft Lbs of Torque when paired with Performer 289 intake manifold #2121 and Performer cylinder heads #60329. Not for 1985 and later engines with roller lifters. Camshaft specifications: - Intake duration: 204 Degrees - Exhaust duration: 214 Degrees - Intake lift: .448" - Exhaust lift: .472" - Lobe separation: 112 Degree - Intake Center Line: 107 Degree - Vacuum: 16"