Delivers twice the voltage to the spark plugs when used with Pertronix Flame-Thrower coils, increasing horsepower, fuel economy, and spark plug life. Two to one (2:1) improvement over points in current fall time, increasing coil output. Optimal performance achieved when used with our Flame-Thrower coils (P/Ns 40501, 40511, 40601, 40611) Rotating cobalt magnets trigger a Hall Effect integrated circuit -- no points to burn and no moving parts to wear out Helps maintain stable timing -- no need for any adjustments Epoxy molding makes our module impervious to dirt, oil, grease and moisture