Electronic Ignition System For 1970-2003 Big Twin Carb Models - Single FireSingle Fire Ignition Pick up Generator Pulse Fit For 1970 2003 Carb Models Features: Complete self contained electronic ignition system built with the latest state of the art engineering. Housed behind the ignition cover and uses a magnetic rotor with the original spark advancer, so the factory advance curve is maintained. Replaces points and condensers, as well as many original electronic units. Ready to mount, plug in, complete with cable sealing