AEM's HEI Adapter Module that works with the Infinity Series 3 ECU and allows users to control ignition timing on engines that are using an HEI distributor. This module gives users the power to control ignition timing above 500 RPM using the Infinity Series 3 ECU (the HEI distributor controls timing during start up and up to 500 RPM). An integrated crank signal conditioner ensures that excessive noise from the crank signal does not affect timing. The module is housed in a 12-pin DTM-style receptacle connector and will require integration into the vehicle’s wiring harness. A 12-pin DTM-style plug connector is available and sold separately (PN 35-2633).