I like it pretty well, it seems to make good power but when i got the blaster it was all in boxes so i rebuilt it and got the dyno port so its had the dyno port on it since its first start. I havent really done anything special with the motor yet, its got a mild port and polish and kens redesigned head and the carbon pro reeds but since it was done all at once i dont really know how much it helped. So i cant really tell you how much it improved the power and where it mainly helped out but im satisfied with it.