it´s been a while since i dont ask for help starting a thread, usually searching was enougth but this problem got out of my hands already, it´s been 4 months or so since i get some kind of rpm cut at 5500rpm, the AFR is going steady 11.8 and when it stops reving is still 11`s, my EGT´s dont go up 1400F, and it doesnt matter if i am boosting 7psi, 12psi or 17psi, it always does it at 5500rpm, my mods are in my signature for referance, i am running already map, any suggestions? Thanks