The HEI Distributor has been a standard in the world of stand-alone electronic ingitions since 1974. We give our HEI Distributor a tune-up in the February 2013 issue of Car Craft Magazine.

The D.U.I. distributor features a cap and rotor with 50-percent higher dielectric strength to handle extra voltage, and all-brass terminals for maximum conductivity. This one-piece ignition system ...

We analyze 10 common myths regarding HEI (High Energy Ignitions) distributor system including ones regarding internal coils, billet housings, performance gains, vacuum advance, and plug wires ...

Ignition-Control Module Test Testing the ignition control module is a little trickier. When the module is exposed to a specific heat range—which can vary—it tends to fail.