Mid rev bogging 08 yz250f

I recently installed an Athena 290cc kit on my 08 yz250f as well as hot cams, it seems to pull good at the bottom and the top of the rev range but at mid revs it sort of sputters (loses power for a split second then comes back) it does this a few times until I hit high revs then it seems to smooth back out.

I am running a 178s Main jet, 48 Pilot jet, #40 leak jet, and my air fuel screw about 1 3/4 turns out, and the red JD needle with the clip 5th from the top as well as the fat oring from the JD kit. I am still fairly new to jetting so was wondering if anyone had any clue on how to even start to fix this problem.

Thank you for any help you can offer

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