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Old 07-07-2018, 11:54 PM
AZRickD AZRickD is offline
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Join Date: Feb 2007
Posts: 1,838
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Now that RB-Designs (USA) no longer does Gas Gas (or Beta) head mods, we'll have to find a trustworthy machinist.

We generally have 91 octane here in Arizona, so maintaining compression ratio by opening up the combustion chamber is important.
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