need a bit of feedback

[nemz]

hey guys, im about to put in a few things to my car

first ill just let use know whats already done and yeh want some feedback

atm i have a 4" cat back super dragger exhuast, an r33 fuel pump, and i think bigger injectors, running 10psi, hks blow off, pivot turbo timer, nismo quik shifter

im about to put in a front mount off a big hp supra, its well designed 600x350x50 i think, and a high flowed r32 turbo out of a 93 model type m like mine, so ill have a spare turbo too, i think it will already be running 18psi when i put it in, just wandering what type of power i will be getting running this set up. and im running a stock dump pipe and cat, these will become a big restriction right?