The HEI distributor is an inductive-discharge-style ignition, but with the points replaced by a solid-state switching device called an electronic ignition-control module.

Our test engine is the same Chevy small-block used in the ignition test, so almost all of the stats for the engine are the same as listed there. The Performance Distributors HEI ignition was used ...

Four Wheeler's Verne Simons shows us how to install a Davis Unified Ignition HEI Distributor in an AMC 304 V-8.