Andrews, F grind / .450″ wznios wałka rozrządu

.450″ valve lift. Basicly an ”A” grind cam; but with delayed timing to help eliminate ”pinging”. More power than stock cam. Should install with no headwork (excl. 81-82). Note: For 81-82 models. The height of original stock H-D valve guides restricts spring travel (and valve lift) to .430″ or lower.