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Old 01-23-2010 | 09:39 PM
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Iflyglow
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From: Clintonville, WI
Default RE: Evolution .60NX with Jett Stream Muffler
I did not run the stock engine. It is now here on rcu. I do not think I lost any RPM since all I did was smooth out the ports, and clean up the crank passage. It could only help. The crank was very rough on the inside passage.
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