[Cloud9]

I just finished my swap and when i get to 5500 rpms it feels like it stops pulling almost if its having a hard time going faster? The whistle from the turbo is louder than normal as well, it sounds like the bov is leaking causing the noise but if there was a boost leak the car would bog before 5500, the car doesnt bog. I checked shaft play before install the turbo and it was good. Any ideas, the car stalls alot but only when coming to a stop and i dont think that has much to do with the current problem but idk. Any help is appreciated thanks.