MCS-508732 - 12V. Dual fire. With a bullet proof; fully adjustable automotive mechanical advance unit with 14 different advance curve settings. This is a drop-in unit for 36-69 OHV Big Twin models that run 12 volt. With stock heads; no head removal is necessary for in

Fitment:
36-69 B.T. (excl. Flatheads) with 12V electrical system (NU)