COMP Cams 83-200-4 High Energy 206/206 Hydraulic Flat Cam for International Harvester 304-392 Low end power, strong torque, good mileage, best for 304 with stock transmission. 800-4,500 RPM Operating Range 206/206 Duration at .050". 110 Degree Lobe Separation Angle. 0.425"/0.425" Valve Lift High Energy grinds are a good blend of efficiency and performance: ideal for performance street rebuilds. Works well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears. Fits '70-'78 International Harvester 304-392 Made in USA