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Home >> Buick >> 1994 >> Century Custom, 3.1 M >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Controls - Adjustments >> Ignition Timing
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Ignition Timing

NOTE: Procedures for timing adjustment are for engines equipped with HEI-EST distributors only. Other engines are equipped with C(3)I, DIS, IDI or Opti-Spark ignition system. Timing on these systems is not adjustable.
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