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fual pump problem

Discussion in 'Chevy Trucks' started by willarde, Mar 14, 2002.

  1. willarde

    willarde Junior Member
    from pa
    Messages: 2

    i am puting a 1974 350 into my 1990 silverodo the engine is going to be carborated so i need to use the macanical pump on the older engine. will it pump threw the pump in the tank
  2. dany

    dany Member
    Messages: 89

    If it doesn't you can always just take the one out of the tank. Why do you want to leave the pump in the tank?
  3. 81pickup

    81pickup Junior Member
    Messages: 21

    Your best bet would be to use an in-line elecric fuel pump. I'm not sure if the one in the tank will work. Depends on the setup. The electric is a much better choice because it will flow better and will probably even free up a few ponies becase it is driven by elecricity not engine power. If you do decide to go with the mechanical go for a good Holley one. I saw a nice one at Lordco that I am considering for my car.

    Hope I have helped.

  4. Chuck Smith

    Chuck Smith 2000 Club Member
    from NJ
    Messages: 2,317

    With an electric pump such as a Holley, you'll also need an adjustable regulator. If I am not mistaken, you mount the pump on the frame rail as close to the tank as possible. I am pretty sure the Holley is more of a "push" pump than a suction pump. Then again, the last Holley electric fuel pump install I did was 10 years ago......

  5. 81pickup

    81pickup Junior Member
    Messages: 21

    Chuck is right. The pump should be as close to the tank as possible. Most electric pumps are designed to push rather than pull the fuel. Good luck with that swap.