Edelbrock Perf Plus Cam and Lifters Kit SBC 400Edelbrock Performer Plus Camshaft #2103 is designed for 400 Chevy V8 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 #2103 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