800 r heads?

hardcorex

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thinking about putting an aftermarket head on my xp. just wondering who has had any experience with which brand of head on any of the o7 r's.do not want to run race fuel so was thinking about a 13.5 to1 comp ratio. any body have any feedback on this would be much appreciated.
 

summit889

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one of the guys i ride with put one on (rktek) same sleds side by side it was good for 4-5 mph track speed .
 
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