Are you smelling the fuel under the hood or back near the tank? The EVAP system is really problematic on these cars and the hoses will dry out and crack and the charcoal cannister will get clogged up cause fuel vapors to escape. I would check the lines around the cannister in the rear of the car.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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