Operation CHARM
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GMC Truck
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1983
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G 2500 3/4 Ton Van V8-350 5.7L VIN L 4-bbl
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Exhaust System
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Specifications
Exhaust System: Specifications
Backpressure is not to exceed 2-3/4 psi.