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Home >> Chevy Truck >> 1988 >> V 30 P/U 4WD V8-454 7.4L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Tune-up and Engine Performance Checks >> Ignition Timing >> Specifications >> Carbureted

Carbureted

Engine 7.4L (454 cid) VIN W Base Timing 4~ BTDC (Manual Trans).

Engine 7.4L (454 cid) VIN W Base Timing 4~ BTDC (Auto Trans).

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