MSD GM High Energy HEI Module R080003L Phenolic carburetor spacers allow racers

Phenolic carburetor spacers allow racers to tune their engines induction systems for optimum performance

Blower Drive Service Supercharger

3 AN Male to 1/8 in NPT Male Swivel

Allows for proper front alignment on lowered vehicles

Internet Updateable Using Free Ignition Update Software

MSD GM High Energy HEI Module R080003L Phenolic carburetor spacers allow racersThis all new Heat HEI Module supersedes the current PN 83645. Using upgraded components, the HEAT produces high output for stock and MSD applications plus has a built in rev limiter that is more accurate and easier to set with the engine running. Features: Easily installs to non computer controlled (4 Pin) HEI housings Built in adjustable rev limiter can easily be set externally Advanced dwell control for improved high rpm output The Hottest HEI