Zx 6 r are a good one because the throttle cable arrangement is at the back, I have zx7 ones fitted and its on the other end
and makes it a bit tight for room aroung the dizzy. make sure when you buy some they have nagled float bowls and try and
get the proper rubber connectors with them and they wont fall off. The KNN job is a 1st class bit of engeering will be worth the wait.
Dave