By incorporating a MSD 6AL box with a Blaster 2 coil in place of the HEI control module and internal coil, the system is converted from an inductive ignition to a high-powered capacitive discharge ...

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.

The engine control module, or ECM, controls plenty of functions during routine driving, so any issues with that part could cause severe problems.

Car Craft tales you through the steps of how to convert a Ford or Chrysler ingition to a GM HEI for a high-performance, more-efficient ignition.