Timmer,
As my momma used to say..Just Do It! You don't have to pull the engine to put the new cam in. The dual carb thing has been around since you know who was a kid..it works, right away! The Fentons are running a close second in the history books. They sound nice and you will feel the difference, right away.
Just do those two things, it isn't complicated. If you can do your own tax returns then this is a piece of cake. The fellow with the nose ring and Mohawk at the muffler shop will tell you in no uncertain terms the VERY best mufflers and pipes to put on your ride!
So, as my dear old dad used to say, "quite spittin on the handle and git to hoeing".
Stuart