My '07 has a FMF TI Powercore , JD Jetting and all free mods(no ais removal). It is stalling after I get up in higher RPM range and back off the throttle and pull in the clutch. It also was popping on decel from high RPM's. I did see over 100mph as I raced my buddies CFR450R with work done to the motor. I had him top end no problem but his close gears ould pull me about 1 bike length until about 90mph. Then it was all WR power:thumbsup: Any help would be appreciated. Too rich or too lean?