COMP Cams Camshaft CS 280H-R10Fits '58 '021 262 400 cid Chevy Small Blocks 2 Limited high performance street Needs aftermarket intake, headers, 2200+ stall, and 3. 40 to 410 gears Mild rough idle Requires thrust button and wear plate and suitable timing cover with thrust button and built in wear plate High pressure high volume fuel pump requires bronze tip fuel pump pushrod Needs aftermarket valve springs Warning: Camshaft Optimized for use with a Melanized or Nitrided distributor