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Old 01-02-2013 | 12:21 PM
  #390  
FlatSpin
 
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Default RE: New Evolution 10cc gas engine

ORIGINAL: Ernie Misner

I would like to see how it responds with the mac's black muffler, one piece unit. We are talking the extra volume version for the 55AX and 60NX. My 55AX's really come alive with this extra volume version muffler since it is larger than the .46 version.

If a certain pipe is tuned for glow, I don't know if that tuning is necessarily optimal for the same engine in gas.
You read my mind! I was thinking the same thing and will see if my OS 55AX MACs muffler will fit. If so, I might have some stats for you on Sunday (wx permitting).

Dave
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