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    1979 EFI conversion-dual fuel pump wiring

    I have a 1979 K25 and we are about to do an FiTech unit on it. I’ve purchased 87 gas tanks, 87 sending units, aeromotive in tank pumps, the 87 switching valve with its pigtail harness and the 87 switch for the dash. What relay do I use to wire the pumps so they turn on and off when each tank is...

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