I agree too. Unless you are really looking to do major engine mods and want to race it, the stock carbs worked well as long as they are clean and nothing broken that you can't fix. If it's in good shape, rebuild it. That's what I do with mine!
1987 Softail Custom, stock except for added chrome, and still running like new after 100,000 miles.
I don't off the top of my head remember what size jets yours would be stock, but I want to say go up 2 sizes on each, but I may be wrong, Dave63 is the guru for CV carbs here, I think he could literally rebuild one in 15 minutes with one arm tied behind his back and while juggeling.
he really does know every part, and part number of that carb, hopefully he will jump in here soon