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Old 09-20-2010 | 11:42 AM
  #34559  
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1fastdude
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From: Sinsinnati
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Ok I know in 1/12 modified last year I was running a 4.5 with a 23 tooth, can't remember what spur (I think 88T) You would probably need to go to a 27 or 28 tooth!
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