What jets?

I ride a 2001 YZ 426 and just bought a FMF Q pipe and FMF Power Bomb. I removed a WB E series. What jets shoud I be running now? I ran the Old Crow HS at Carnegie and my bike bogged really bad. Just a starting point would be great. :)

Also what about adding the zipty?

id go straght for the jd jetting kit and do the bk mod then your sorted no need to mess about with anythin else :) the jetting will be done and the bogging wil be sorted

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