Edelbrock part #7162 Performer RPM Camshaft is designed for big-block Chevy 396-427-454 V-8 applications. This Edelbrock cam kit produced 540 HP & 530 ft-lbs. of torque when used with #7163 intake and #60559 cylinder heads on a 454 engine. The camshaft works well with high-performance's street applications, Performer RPM cams provide power from 1500 to 6500 rpm. This hydraulic lifter camshaft is dyno-matched to Performer RPM manifolds for high-rpm horsepower while still maintaining acceptable low-end torque. With 10 to 12 inches of manifold vacuum at idle, Performer RPM cams have more lift and duration than most street camshafts. Hydraulic flat tappet lifters are included with each Performer RPM camshaft. Camshaft Specifications: - Duration @ .050 Intake: 240 degrees - Duration @ .050 Exhaust: 246 degrees - Lift @ Valve Intake: .560" - Lift @ Valve Exhaust: .573" - Lobe Separation: 112 Degrees - Intake Centerline: 110 Degrees - Idle Vacuum @ 1000 RPM's: 10"