You can't do it half way. Cams are simple, even easier than the BB swap. Either job is well within the reach of a halfway competant weekend mechanic. The shop manual is your friend here.

You need to do the BB kit, and cams. The stock cams are smog friendly. They have zero overlap, which is good for emissions, but lousy for performance. (actually negative 5* overlap) You need a little more lift, duration and overlap to feed the motor, especially if you're upping your displacement.

Set your compression at 10.2 to 10.4 static or so, and a whole bunch of performance cams become viable. If you do this smart, you can easily add 30 hp and even more torque and still have a reliable, streetable bike.

 

My 05 Road Glide really woke up after a 95" bore and a Fatcat 2-1, it still has the stage 1 download in to! Big difference over stock!