Competition Cams CL122133 Magnum 292H Cam & Lifters Kit For Chevrolet 262-400 Cam and lifter kit for Small Block Chevy engines CL-Kit includes cam, lifters, assembly lube, instructions and decals Hydraulic Magnum: Street/strip special, 3000 stall, headers, gears, 9.5:1+ compression; very rough idle OR Drag Race: 3000+ stall in heavy car with 10:1+ compression Valve spring upgrade required