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Old 08-12-2009 | 09:41 PM
  #1836  
NitroOB4You
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Originally Posted by matrixmike28
Hey guys can someone help? I am trying to improve run time on my FM .21, I am getting max like 7:30 in my MBX6. I have the 2013 and 97t plug. I have about a gallon and a half on the motor, and it usually comes in temping around 215. I am not a really smooth driver but it seems like I should get a little better than that.

Oh I am running aluminum shoes and 1.0 springs with a 13 tooth bell.
7:30/8 is good with the 2013. Try the 2057. You should avg 8:30/9. You'll lose a tick on the bottom, but open up the top quite a bit too.
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