Quick 16 and Fast Bracket, 1.8 and 1.7. 4,800-8500 RPM Operating Range 281/296 Duration at .050". 114 Degree Lobe Separation Angle 0.873/0.800 Valve Lift Strip Ready - COMP Cams Drag Race series was developed to propel your drag car to the finish line first. Including more aggressive lobe designs, Drag Race grinds deliver exceptional power for every application. N/A, Nitrous, Blower and Turbo - Regardless of the build, COMP's Drag Race line has a camshaft for your engine. With grinds for naturally aspirated, blown, turbo and nitrous engines, the Drag Race series was developed for the most common drag race engine combinations out there. Fits Chevrolet 396-454 Mark IV Big Block Made in USA