Operation CHARM
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Chevrolet
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1992
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C 1500 Truck 2WD V8-454 7.4L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Ignition Timing
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Specifications
Ignition Timing: Specifications
Base Timing
4° BTDC (Manual Trans)
Base Timing
4° BTDC (Auto Trans)