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    • #91451
      Matt Martin
      Participant

      Depends on your engine.  Is it modified?  Is it ported.  What’s the head volume?  What’s the squish?  In general even stock K9s like a proper leaded race fuel.  They can run on ms98; but I run mine on VP C12 at 20:1 with Castor 927.

      https://vpracingfuels.com/product/c12/

       

       

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