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Home >> GMC >> 1995 >> Forward Control 4.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - Basic Testing - 7.4L) >> C-4, Basic Ignition System Checks >> HEI-Est Distributor >> Notes
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HEI-Est Distributor: Notes

WARNING: This page is about a different variant/trim than selected.
NOTE: Only basic ignition timing is adjustable in HEI/EST ignition system.
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