Tagged: Fuel, octane, oxygenated, shifter, Sunoco, tmk, VP
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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