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Thread: 454ss OBD-0 to Atomic

  1. #1

    Default 454ss OBD-0 to Atomic

    I am a proud owner of a new 2910 atomic setup, that came with a 2920 fuel pump.

    I have a 88' King cab custom dually lifted and straight axled.

    It has a 90 454ss motor with mild cam, shorties and Edelbrock EFI manifold.

    It is running a custom chip (Superchips)



    I am changing the manifold to a Airgap style.

    Removing the factory EFI and adding the Atomic.



    I know I will need a distributor, coil, and 6AL (still have to buy)

    I believe I will need a different fuel setup due to it being a return style fuel system, pump in the tank.



    Question:

    Can I use the factory pump and just need to buy a different return setup?

  2. #2
    msdtech1955 Guest

    Default 454ss OBD-0 to Atomic

    I am changing the manifold to a Airgap style.

    Removing the factory EFI and adding the Atomic.



    good to hear ,





    I know I will need a distributor, coil, and 6AL (still have to buy)



    85551: distributor

    http://www.msdignition.com/product.a...79&terms=85551



    84211 : adjustable rotor

    http://www.msdignition.com/product.a...69&terms=84211



    6425 : 6al

    http://www.msdignition.com/product.a...013&terms=6425







    Question:

    Can I use the factory pump and just need to buy a different return setup?



    the system requires 45 psi ...would change the intank pump to a newer

    model ( like from a 99 or newer vortec motor) and leave it return ..



    msdforms@msdperformance.com







    Latitude: 31.730125
    Longitude: -106.29673








  3. #3

    Default 454ss OBD-0 to Atomic

    Will I need a different fuel pump system?

    Return line deal?



    Ron

  4. #4
    msdtech1955 Guest

    Default 454ss OBD-0 to Atomic

    yes sir, the pump you currently have, does not have the fuel pressure neeeded.

    we have had customer in the past do this conversion ...no worries .. just

    get you a newer model truck fuel pump and adapt it to your current pump assy in the tank.



    msdforms@msdperformance.com







    Latitude: 31.730125
    Longitude: -106.29673








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