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Old 06-23-2008 | 07:22 PM
  #30  
Skillhouette
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From: Woodland Hills, CA
Default RE: Go Technology engine question

I have the GO Tech .21 7 port Turbo... It comes with an extra head shim... Should i use it for break in? What is it for? Also, Can i run 20% fuel on this engine? Or should i use 25% or 30% ? And why? Thanks!!