Bonneville America Forums Forums Technical Forums Performance Mods First Impression after Advancing Exhaust Cam

ONE MORE THING ABOUT THE EXHAUST MOD.

WHEN LOOKING AT THE CAM TIMING MARKS,

TO ADVANCE THE EXH. CAM THE CAM TIMING MARK WOULD BE 1 TOOTH BELOW THE MARK ON THE CAM DRIVE GEAR AND TO RETARD THE EXHAUST THE TIMING MARK WOULD ONE TOOTH ABOVE IT.

STV