Feuling Chain Driven Camshaft Install Plus Kit for Twin Cam 2071 Now available in two kit styles: standard and plus Each kit includes Timken roller bearings, Timken Torrington full roller needle bearings, 12-point ARP camshaft and crankshaft bolts and hardened washers Plus kits include rocker box cover and breather gaskets, breather elements, umbrella valves and O-rings