High performance. Biggest cam with stock converter but better with 2000+ stall. Use lower gears. Mild rough idle. 1,800-5,800 RPM Operating Range 224/224 Duration at .050". 110 Degree Lobe Separation Angle Best with aftermarket torque converters and 9.5:1 compression..Easy on valve train parts, and can be used with mild ratio rocker arms and traditional performance valve springs..Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer..Made in USA