Safari Van M V6-262 4.3L VIN Z TBI (1990)
TIMING MARK 2.5L (151, 4.3L (262) FI, 5.0L (305), 5.7L (350)
GMC Workshop Service and Repair Manuals
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TIMING MARK 2.5L (151, 4.3L (262) FI, 5.0L (305), 5.7L (350)