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Thread: 03 5.3 bucking/backfiring

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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    You have got to get an inline Walbro or the Aeromotive if you want to spend that much money. Be sure you have a return line for the excess fuel pressure. I guess I feel obligated to ask this question, so here goes... are you running fuel injection or does this engine have a carburator?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Mar 2007
    Posts
    12
    <div class='quotetop'>QUOTE(RedHeartbeat &#064; Mar 15 2007, 08&#58;12 PM) [snapback]86385[/snapback]</div>
    You have got to get an inline Walbro or the Aeromotive if you want to spend that much money. Be sure you have a return line for the excess fuel pressure. I guess I feel obligated to ask this question, so here goes... are you running fuel injection or does this engine have a carburator?
    [/b]

    this engine is running full efi electronics from the 03 tahoe.
    its runnig a return line to the tank. the pump in the tank/and the tank itself are from a 87 subarban.i may try running an inline walbro 255 like in my 68 mustang. do you guys sump your gas tank? or run some type of pickup tube. thanks again.

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