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1972 Blazer K5 Fuel Tank question?

Discussion in 'The Garage' started by AZ72K5, Sep 7, 2005.

  1. AZ72K5

    AZ72K5 Newbie

    Sep 7, 2005
    Likes Received:
    The stock fuel tank has three hose attachments on the filler side, one for the fuel, another for overflow, and a third smaller one 5/16" hose attachment.
    My question is what is the 5/16" one used for and where does it run to?
    I have all of my lines attached but have not been able to figure out what this one is for. :doah:

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