red t2 2003

Well I checked the front fan on the turbo and it doesnt have any shaft play but my car moves really slow . I havent checked the back fan yet , but the car is now smoking white smoke under boost with a little purple tint . I have a 3in all the way back to a n1 . 550 injectors, fcd , 3rd gen fuel pump , and a chris sander s tid . Oh and i dropped my boost gauge so notelling how much boost im pushing. I was going to send my 91 turbo to bnr for them to up grade it to a stage 4 but will that get me into the 12 s . I have a pair of 720 , greddy boost controller, sx fuel regulater , and safc not installed yet . what do you guys thinks ? Oh yeah I have a 87 t2 with s5t2 motor but Im using the s4 turbo and manifolds.