High Energy Ignition (HEI)
The Delco-Remy High Energy Ignition system is a self-contained unit. It consists of ignition coil, spark plugs, distributor assembly and primary and secondary wiring. The distributor housing contains an electronic control module, pick-up coil, pole piece, timer core, rotor, capacitor for radio noise suppression and timing advance mechanisms. Most applications house the ignition coil assembly within the distributor cap. See Fig 1.