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Thread: The New Werks B5 .21 Racing Engine
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Old 07-26-2010 | 12:36 PM
  #4799  
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mike881
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Joined: Feb 2010
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From: Colorado
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Ron or anybody has the knowledge,

I just ordered my 2nd B5 today. I used 30% on the first motor, but will 20% give me better engine life? I do live in Colorado and most guys use 30. Just wondering your opinion?
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