if trevor would get us an interface, you could just get rid of that carb and use a revo for the fuel!
get on it trevor!!
ive NEVER had much luck on carbed bikes with nitrous. I know it can be done (obvisously) but usually i spray so much nitrous that it either stalls the airflow slightly (causing fuel issues) or the weather changes made fueling to aggravating to deal with all together. .. so.. for me.. fuel injection it is.
anyways.. back to the point... have you thought about maybe fabricating some kind of plate to put behind the carb for nitrous, then the 4 atomizers for the fuel up front. im thinking something like the vortex plate like trevor just did for the busa.
take a look at this video.. (ignore the technical crap.) you can get a little bit better idea how the nitrous will actually flow by looking at it.. notice the flow to each cylinder never really stops.
http://www.youtube.com/watch?v=X3ecq8MNfk0