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Thread: stock exh. mod

  1. #1
    Junior Member
    Join Date
    Apr 2013
    I am going to modify my stock exhaust w/ a 1 5/8 hole and am wondering if any one has done it and if so do I need to jet the carb after. I don't want to do it till I can get the jet kit if so. Please help

  2. #2
    Senior Member
    Join Date
    Jan 2009
    SF East Bay
    It's safe to assume everyone has done it.

    Up your jets to 45/170 (or 45/175 if you have the 170 stock) and add .05" of shims to raise your needle.

    It will act like a different engine.

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