As Kelvar says, raising the needles will probably correct most of your problems, however, I recommend getting to a Dyno and making sure of the main jet selection. If this is not where it should be, no amount of playing with the needles will help. What works on one bike cannot automatically be applied to another. A number of things can, and often do, result in different jetting selections among otherwise identical machines.
If you really want to get super performance from your carbs, look no further than the Flo-Commander. [ flo-commander.com ]
I still install jet kits on a regular basis, but the Flo-Commander renders a much greater performance increase. After installing a jet kit, my customers will say something like "I think it's a little better and the flat spot is pretty much gone too". With the Flo-Commander, it's more like "O my God, I can hardly keep the front wheel on the ground".