It's hard to answer exactly what you should run because the 2 turbos act so differently.

i'd guess around 20psi would make the same max output as a T34 at say 32psi.

but throughout the rev range the fuelling will be out by miles i'd expect.

i would only fit it and drive it off boost personally....on the way to my tuner to get a new chip fitted or have it remapped.

at best you'll be using way too much fuel and losing power, at worst you'll melt the engine!