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Old 03-11-2003 | 02:31 PM
  #14  
Montague
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From: Laurel, MD,
Default .15 engine in my HOR
Could you test run it on the ground with out the muffler attached at all, and see what the RPM is? If it's not much better, then you'll know not to bother boreing out the muffler. Just a thought.
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