[95eclipseSlow]

I have a 1995 eclipse rs that i recently put a turbo on. My fuel system consists of a walbro 255, sfmu with largest disc and small hard spring, dsm 450cc injectors. I am running around 10-14psi i just havent really messed with the boost yet because of the stuttering problem. When at wot the car will hesitate and stutter at 4000-4500rpm. Right at the power band is when it stutters. I have new injectors, new fuel filter, the fuel pump was new,and new fuel return line. I just put plugs and wires in not too long before i installed the turbo. Where do i start to diagnose this problem?