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.

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 Module you buy-period!

Produces an incredible 8.5 amps of juice!

Adjust the rev limiter without removing the cap!

Fits in stock HEI distributors