[300ex head] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs
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300ex head

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Posted by: redrider9045

hey some people have told me that i can cut some of teh 300ex head off to get more compression has anyone done this if you have how much should i cut off and not have to use a higher octane fuel





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