Borgeson 800126 (Small Sector) Quick Ratio Steering Box Applications

I am thinking about using one of these boxes in my 71 Charger over a rebuilt box from Firm Feel as I already have 2 of those (which I really like). The main reason I am considering it is because I am going to be running a 5.7 Hemi and I am concerned about the PS pump pressures. I am also intending on running a Hydroboost system, so I am trying to figure out how to make all this work.
The box has a maximum operating pressure of 1450PSI with an optimal pressure of 1100-1200 PSI, flow rate should be kept between 2-2.5 GPM