MSD 83647 Digitial HEI Modules

Add to Favorite Sellers. 83647 HEAT HEI Module. High output replacement HEI module with built-in rev limiter. Using upgraded components, the HEAT HEI module 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.. CARB EO # D-40-43. Easily […]