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Chevy Truck
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1988
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R 20 P/U 2WD V8-454 7.4L
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Repair and Diagnosis
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Specifications
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Electrical Specifications
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Ignition Timing
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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).