PORT IT PORT IT PORT IT! i was like you and never really wanted to take my cylinders off and do internal work. i figured the best i could do with gearing and intake mods would be fine. but will all of these 4 strokes and their fancy electronic crap, i couldnt keep up anymore. so i got it ported and my timing advanced by 4 degrees. good lord it is a beast now. no one expects it, but it rips hard. great performance, prices, and customer service over at HJR. havent heard a single bad thing about any of the sponsors though.