Question about 1985 Chevrolet Chevy

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Fuel pump two lines

The fuel pump is diffrent from my inline it has two lines commin of it. one is the feed line and the other must go back to the fuel tank as a run off? can i just plug the line? can i use the one of the inline?

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  • snotme84 Feb 06, 2009

    it's not tbi it has a rochester 4 quad jet thats not a option for me my sending unit it not conpat. can i run a 70's pump

  • snotme84 Feb 06, 2009

    so if it's carb just plug the line and run it, is that what your saying to me i'll try anything walking to work gets old when it's cold

  • snotme84 Feb 07, 2009

    sweet will do and thanks for all your help i'll let you know later how it goes


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I had a 85' Just like yours. You cannot Plug the Return line or it will Overfill the Bowl and result in Overignition and Flooding out. That return line catches all of the Fuel that the TBI Does not Burn and Returns it to the Fuel tank for Reuse. Please Rate My Response! Thanks!

Posted on Feb 06, 2009

  • 1 more comment 
  • Travis Humphries
    Travis Humphries Feb 06, 2009

    Yes, You can run a 70"s Pump and Close the Return Line just fine. My Bad---Mine was TBI Injected.

  • Travis Humphries
    Travis Humphries Feb 07, 2009

    It should be Fine. If not, Do not Remove the Return line, Try it First. I know that the Old School Carbs did not need the Return line. They just Burned the Extra Fuel inside the Bowl.

  • Travis Humphries
    Travis Humphries Feb 07, 2009

    Awesome! I should be here!


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