You know you are on the right track to pick-up power by wanting to port the head with cam and carb mods, those 3 items can contribute to major hp gains on any 4 stroke engine! Cylinder head prep is one of the most important details to a good performing engine. A lot of potential can be gained and lost by having a great prepared or a poorly prepared head. Most heads have a lot of potential left on the table left with the "off the shelf" factory set-up. With basic port work and, a good valve job the hp/tq gains can be quite impressive generally with no other mods. The cam plays a very important role also, again major improvements can be gained by choosing the right grind. Now to the carb, since you have made the engine much more efficient with it's mods to the head and the cam, it will be necessary to correctly set the carb. The minimum basics would be correct jetting for w.o.t. , mid and idle, these are an absolute necessity with most any engine modifications. All these mods should be built around your intentions for the machine, whether it's for trail, drag racing, pulling, etc, they all have different requirements. Make sure whomever provide the work and parts they know what your needs are. I offer complete custom head work, cam grinds, carb mods and any major engine work. pm me if interested. -Good luck!
-Ron.
