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What Octane & Race Fuel


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I have a Banshee with 165 psi compression in both cylinders at 600' elevation.  My timing is +3 +4 I believe.  I also have dune porting.  I've ran Sunoco Supreme (Motor Octane - 109, (R+M)/2 - 112) at Glamis, and VP C12 ( Motor Octane 108) in Johnson Valley (about 3500' elevation).  What is the lowest octane people have ran at Glamis and at 3500' in elevation with a similar set up as mine with no issues?  Also has anyone ran F&L SP-1 fuel at Glamis with no problems?

 

 

 

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