Excellent torque and power for towing in 300c.i. Smooth idle. 1,000-5,000 RPM Operating Range 212/212 Duration at .050". 110 Degree Lobe Separation Angle. 0.447"/0.447" 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 '65-'96 Ford 240-300 6 Cylinder (10" Deck Height) Made in USA