port muffler

  1. Anthony 4k

    Muffler, nt carb.

    I decided to take the cap off the stock muffler just to see, huge power difference! Can take off slow up big Hill! Also went to the last lean notch on needle which helped a lot( nt carb). Obviously can't leave the cap off, so I might drill a couple holes or look into expansion chamber which I...

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