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Home >> GMC >> 1987 >> Value Van P2500, 5.7 M, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Adjustments >> Ignition Timing >> Notes
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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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