XP 860 Surging 7-8000 RPM

I have a 860 XP when pulling on a hill it surges between 7-8000 rpm. The EGT's are around 1120 tried jetting down from 430/420/410 to 400 no change. Changed out DPM off another sled that was running fine no change. The inside of the air box is soaked with fuel, indicating too much fuel , checked V-Force reeds and they are fine. I had this problem last year, thought was TPS had it set in spring but never rode it since.Raves slide fine.
Any suggestions.............................................