Thats apparently a tough question for the fellas here! the thing is that it really is an easy job and most of us have done that ourselves as its not usually a one and done operation. As far as time goes,a competent tech should be able to do a rejet and carb balance in far less then 2 hrs. shop rate is usually between 60 and 80 bucks and parts are under 20 bucks. Here is a jetting calculator to make it easier.
http://www.bonnevilleamerica.com/dinqua/friar/
