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  1. Racing Fuel?

    Exhaust And Fuel Delivery
    I have a 2017 Duke. Has anyone tried putting racing fuel in their 390? I have been mixing 1gal of CAM2 110 octane racing fuel in my tank along with 93 octane from mobile. Holy ****, it really livened this thing up! I can’t believe how much of an improvement in power I could feel with just using...
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