The Kan-O-Tuna's engine is the same as the GSXR, oil cooled.
Why did you disassemble them in the first place, and were they varnished up inside?
If the bodies were off the rack, chances are they need to be synchronized again with a tool something like this:
http://www.motionpro.com/motorcycle/partno/08-0411
Unsynched carbs will more likely cause it "gallop" at idle, kinda like a car with a big cam in it. I wouldn't think it would make a runaway idle like you're describing.
My bet on the "racing" idle is an air (vacuum) leak such as a torn or cracked intake manifold like the Warriors get. A plugged idle air circuit/pilot jet will usually make it simply miss at idle, and cause a spongy, lazy throttle response. I use WD-40 on the manifolds when installing the carbs to keep from kinking or tearing them, and work them on slowly till all are seated the whole way.
If the bike has individual air filters (Dynojet Stage III or similar) or has the airbox removed or modified, the fuel metering will be ALLLLLL over the place. If the bike is stock, you MUST have the box hooked up with filter, properly.
CV carbs are that finicky.
