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No jetkit sold will work very well but if you must choose go with JT. If I were you I'd just go with the NCVQ needle and kiehn mains, it's much cheaper and easier.
I agree with BigBubba get the NCVQ needle(it's the one from the GYT-R jet kit and stock one for the YZ450)
Then alot more people will beable to help you with your jetting