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if your gonna dyno a bike before and after to see gains u need to go back to the same Dyno and use the same tires///
Tires will affect numbers tremendously ... go out and ride it.... they say if u are happy or not

+1 you can not compare dyno to dyno you need before and after on same dyno. Things with irs also can vary in hp the way you clamp them down its effected more than a straight axle. Tires are important for contact patch the weight doesnt effect it as much as you would think but surface area does. Also as Hp increase some dyno's will be a little more generous than others with dynojet some of the older software tends to show some better # usually they are fairly close at 40 hp area within 2-3 but as # increase they get furthur apart. just food for thought
 

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the stock head is fine for that cam as well you are not going to pick up that much with that cam and stock valves with it ported. if you going to do port work you should factor in a new cam as well or you will probably be sorry.
 
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