I have got no further with my project bike for quite some time. But initial tests gave me a slight hesitation/fluffy spot in the mid revs. Still working on it.
With CV carbs you can open the throttle as fast as you like and there shouldn't be any problems as that's the whole point of them. The raising of the throttle slide is ultimately controlled by the vacuum in the carbs, not your right hand, and as such lifts the slides as fast as is possible. This is all tied in to the airbox shape and size and the manufacturers spend a lot of time getting it right. By fitting pod filters you effectively screw everything up! For my project bike I'm actually considering making an air box to fit in with my build aesthetics, however nothing decided on which way to go.
As I mentioned my ZRX runs fantastic on pod filters, but I fitted a jet kit developed by Ivan after running loads of dyno runs to get the best results.