How much boost are you running?
You could be loosing fuel pressure at high demand, it should be close to 40psi on a '93 and not drop below say 38psi to be safe with your setup, N/A 30psi is fine
If injectors are too large then idle will be crappy along with low RPM performance, too much fuel coming at minimum injector pulse.
There are many fuel injector calculators on line
If your target Horse Power is 300
Fuel Pressure 40-45psi
Then you would be at 34lbs injectors
If fuel pressure is only 30psi then 41lbs
You know what HP you might have, I don't.
You know or should get the Fuel Pressure, it is very important for this pressure to be constant thru out the RPM range.
40-45psi is the best range