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Thread: Injection System

  1. #1
    Junior Member JOURNEYMAN
    Join Date
    Apr 2004
    Location
    Byron, Ga
    Posts
    25

    Injection System

    My system is a hilborn injection system. How important is running a high speed by-pass valve?

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Jan 2007
    Location
    Batesville Ms.
    Posts
    167
    I have one on mine. Later J. Smith 4621 racing

  3. #3
    Senior Member RACING JUNKIE
    Join Date
    Jan 2006
    Location
    La.
    Posts
    2,890
    It will definately run better on top end with a highspeed leanout, due the nature of the mechanical pump putting out more pressure as the rpm increases, not just my opinion but hilborns also.

    Zip.


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