The car runs perfectly fine as long as I don't get on the turbo. Only when I start boosting does the issue show up.

Cam and ignition timing has not changed. Has never been touched. Quite literally, this problem appeared overnight. Saturday the car drove fine, didn't touch it Sunday, and then Monday it was being difficult.

I've been following the how-to's on this webpage:

http://www.turbododge.com/forums/f4/f14/358339-checking-fuel-pressure-84-93-turbo.html

This is the part that worries me about the output of my fuel pump:

D)"Deadhead the Pump" by momentarily pinching off the return line, this will show you the pumps maximum output. Maximum output needs to be a minimum of 80 PSI and pressure needs to rise to max instantly.

When I dead-headed the fuel, it took several seconds for it to even climb to 70psi and that was as high as it would get. It was most definitely NOT instantaneous.