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Home >> GMC >> 1987 >> Forward Control 5.7 K, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Adjustments >> Ignition Timing >> Notes

Ignition Timing: Notes

NOTE: Engines are equipped with a receptacle for magnetic probe timing, located 10° ATDC. Do not use this location for timing with a conventional light.

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