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Old 11-07-2010 | 10:10 PM
  #2  
captinjohn
 
Joined: Jan 2002
Posts: 12,957
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From: Hesperia Michigan, MI
Default RE: making decent mufflers
Match the ports...but polishing is a waste of time. It is proven too smooth a sufrace the fuel sticks more!!! This was done with a flow test device. Years Ago. My cousin had one. Capt,n
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