Edelbrock Camshaft Performer-Plus Hydraulic Roller Small Block Chevrolet 1987-Later w/ Thrust PlateEdelbrock Rollin' Thunder Camshaft #2209 is designed for 265 350 Chevy V8 engines from 1987 Later and produce 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