MY DRIVEWAY IS VERY SLOPED, THE GAS DRAINS BACK TO THE TANK

Asked by Jan 07, 2017 at 04:43 PM about the 1979 Buick Regal 2-Door Coupe

Question type: Maintenance & Repair

HOW TO PREVENT THE GAS FROM RUNNING BACK TO THE TANK
DURING OVERNIGHT INCLINATED/SLOPED  PARKING, ON BOTH MY
CLASSICS BUICK REGAL 1979  301,  CHEVROLET IMPALA 1979  350 CID

2 Answers

66,705

Back into the driveway.

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2,490

Try a check valve in the line. Those older cars only have one line from the gas tank to the carb so there is no decision on which line to install it on. You could also add an electric fuel pump...turn on the pump, fill the line then start the car.

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