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Home >> Chevrolet >> 1987 >> G 10 Van V8-305 5.0L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Distributor >> Specifications >> Distributor Timing Advance
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Distributor Timing Advance

The Control Module advances or retards the spark. If the base timing is set incorrectly, the engine spark curve will be incorrect.
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