Best ratio of racing gas to unleaded pump gas

KDX1

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#1
I bought some Sunoco 115 octane race gas and was wondering what is the best ratio to mix it with regular unleaded pump gas. The motor is stock. Will I have to adjust my jetting? Thanks:think

00 KDX 200
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Rich Rohrich

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#2
Is the fuel your are using the Sunoco Purple leaded fuel?
 

KDX1

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#3
Re: Sunoco purple

Yes, Rich it is in fact purple. I went to Sunoco's web site and was able to find some information regarding the specs, but I don't know at what ratio to mix/cut it with regular unleaded fuel. Any help you could give would be greatly appreciated.
Thanks :D


00 KDX 200
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