COMP Cams CL11-460-8 Cam & Lifter Kit (CB 304H-R10) Street/strip. 10:1+ compression, 3000+ stall, 4.10+ gears, aftermarket intake and headers. Very rough idle. 3,000-6500 RPM Operating Range 244/244 Duration at .050". 110 Degree Lobe Separation Angle. 0.612"/0.612" Valve Lift CL Kits include a camshaft, a set of lifters and instructions. Great high RPM power - Best with aftermarket torque converters and at least 9.5:1 compression. Easy on valvetrain parts - Can be used with mild ratio rocker arms and traditional performance valve springs. Fits Chevrolet 396-454 Mark IV Big Block Made in USA