FST points-to-electronic ignition conversion kits mount completely inside of the distributor, in the stock points location, with two wires to hook up. They're fully urethane-sealed and over-temperature protected for long life. They pick up timing directly from the points cam, with no shutter wheel required. The fully digital FAST XR-i converters also feature a rev limiter that is adjustable from 4,000 to 8,000 rpm to protect your engine.