Never mind, found my answers.
Looks like I will have to buy a new controller housing and reprogram/reflash the
Progressive Controller for the 3 bar through the walkthrough on this site.
But is a 7GPH nozzle too small for what I need? I looked at a thread one one of the boards I frequent, and some guys are running 15 GPH nozzles @ 30 PSI.
I think I should maybe go with a bigger nozzle? That way I could bump timing up a bit as well. This will be mostly a 50/50 mix.
Some of the mods to the car are:
Rebuilt 2.5 shortblock
Ported and rebuilt 782 head with all new valvetrain
T3/T4 Hybrid turbo, 50 trim, w/ stage 3 0.63 AR turbine housing and ATP 3" V-band swingvalve
52 PPH Mopar injectors,
255 L/Hr fuel pump
Massive front mount intercooler, 2.5" piping
Custom cal @ 24 PSI boost "street" setting
OBX limited slip diff
SPEC Stage 3 clutch
Etc... etc...
I'm planning to hit 350-400 WHP on this setup if I can, at 2000+ ft elevation.