COMP Cams Camshaft CS 304H-R10Fits '58 '021 262 400 cid Chevy Small Blocks 2 Street strip applications Needs 3000+ stall, 3. 90 or lower gear ratio, aftermarket intake and headers Very 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 pump pushrod Needs aftermarket valve springs Warning: Camshaft Optimized for use with a Melanized or Nitrided distributor