Edelbrock Camshaft Perf RPM Hydraulic Roller BB Chrysler 361-440Edelbrock Rollin' Thunder Camshaft #2206 is designed for 383 400 440 Chrysler V8 engines and produces optimum torque from the low end to the mid range. Rollin' Thunder camshafts should be matched with Performer manifolds for vehicles operating from off idle to 5500 rpm. They are smooth idling cams 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