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Old 05-15-2008 | 11:36 PM
  #33  
strngdze
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From: San Diego, CA
Default RE: GRP engines

ORIGINAL: joydude630

If I need to run 30% fuel on the GRP; do I need to add or remove shims?
They come stock with (1) .3mm aluminum and (1) .1mm copper already installed. I installed one more .1mm copper shim for a total of .5mm to run 30%. I believe Drake had said on another forum that he runs them stock, which would be .4mm with 30%.
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