This is what I had down in my notes from something I gathered awhile back for stock..
Min Line pressure
P/R/N , 1.0 amp, 79-101 psi
4/3/2 , 1.0 amp, 74-86 psi
1 , 1.0 amp, 146-187 psi
Max Line Pressure
P/R/N , 0.0 amp , 223-271 psi
4/3/2 , 0.0 amp , 167-203 psi
1 , 0.0 amp , 146-187 psi
My issue was even at 0.0 amp, in P/R/N it was over 300psi.. but once I was in gear and moving the pressure tanked... I think around
150psi or so in 1-3rd.