• Adjustable rev limiter for over-rev protection
• Digitally controlled module for accurate timing
• Exceptional high speed coil saturation for full power high rpm operation.
• Matched Coil and Module produce the highest voltage and energy.
• Complete kit with a brass terminal Cap, Rotor, Module, Coil and dust cover
• Rebuild your GM HEI with MSD performance and reliability
• For use with non-computerised 4-pin module HEI Distributors only

The Ultimate HEI Kit has everything you need to make your early model GM HEI Distributor a great performance distributor! The kit is supplied with MSD Digital 7.5 amp performance Module (PN MSD83645). By matching the Coil specifications with the module, MSD also delivers more accurate timing and dwell control - plus an adjustable rev limiter. To ensure all of this new power makes it to the plugs, the kit is supplied with an all MSD cap, rotor and coil cover. The MSD Ultimate HEI Kit delivers proven performance!