The COMP Cams 307Rxd camshaft is intended for bracket-style applications with good heads and a small Comp Eliminator setup using 1.6 rocker ratios. The product notes that 1955–57 small-block Chevy models with a rear journal oiling groove will not accept the listed cams; contact us if you need the grooved version. This cam supports dedicated bracket racing builds.
COMP Cams Camshaft CS 307Rxd-12