D.U.I. Rev Limiting Module
Protect your engine from over revving with the Rev-Limiting DU.I. Module! This Rev Limiter uses DIP switches to drop spark one cylinder at a time, until your engine is at or below its maximum rpm. Those cylinders are then fired on the next cycle, to prevent them from loading up with fuel. The result is smooth rev limiting action that prevents backfires and possible engine damage. RPM limits can be set up to 10,000 rpm’s! Works with all HEI and DUI Distributors.
The DUI Rev Limiting is designed to replace the entire 4 pin GM module and connector/harness assembly in GM 4, 6 (even-fire), and 8 cylinder HEI distributors. Only the GM pickup/stator assembly will remain of the original triggering system.