MSD HEAT Digital HEI Module & Coil
Produce up to 8.5 amps of current with a direct plug-in MSD HEAT Digital HEI Module for 4-pin stock HEI distributors. This HEI module is digitally controlled for accurate timing and has a built-in adjustable rev limiter that ranges from 5,000-10,000 RPM.
MSD Blaster & Replacement Coils
GM HEI Distributor Coil