This kit converts 1959-1971 Chrysler Big Block and Hemi Dual Point distributors to electrinic (not Prestolite). Solid-state electronic ignition system. "never change points again!" Test results show the Ignitor delivers twice the voltage to the spark plugs, increasing horsepower, fuel economy and plug life. A 2:1 improvement over point type systems in current fall time for increased coil output. Rotating cobalt magnets, mounted on the distributor shaft, trigger an electronic switching module (Hall effect integrated circuit) ...no points to burn, pit and corrode ...no moving and rubbing parts to wear out. Electronics are molded in epoxy, eliminating deterioration from dirt, oil, grease or moisture Fits entirely inside the distributor, no "black box" to clutter your engine compartment. Stable timing, no need for any adjustments. No complicated wiring makes installations easy. Works great in stock point-type distributors as a trigger for multi spark CD ignitions, eliminating the need for expensive aftermarket distributors.