Heat HEI Module
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.
• 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
• Produces an incredible 8.5 amps of juice
• Adjust the rev limiter without removing the cap
• Fits in stock HEI distributors
Click here to download the MSD-83647 Heat HEI Module instructions.
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