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The FAST HEI Advanced Lock-Out Kit secures GM HEI distributors with internal coils for high-RPM or race applications. Built to fit non-computer-controlled internal-coil HEI units, this kit prevents unwanted distributor movement under extreme engine speeds and helps maintain ignition timing consistency where a lockout is required. It’s a focused solution for engines using the HEI platform that need a more secure distributor setup in demanding use.
FAST HEI Distributor Advanced Lock Out Kit
