Superbike bars can be 1-2 inches above the clamps. If you go for Drag Bars, get the ones that have a 15 deg bend, easier on the wrists. I usually knotch the switchgear for the wires and pull the locating pins. Once I get those wires out, I don't ever want to do it again for the same bike. Plus it allows you to get a wider variaty w/out having to drill the bars. A pain to get perfect.
Either way, you will be putting more weight on the front of the bike so it will handle a bit different and you might have to tweak aroung with the fork springs and oil to get it balanced. They were typically too tail heavy anyway so more weight on the front will help as long as you dial the Susp.