Pinion Angle Question

[Pilot20]

I have a 57 Chevy that I am installing Air-Ride suspension on all corners. On the back I am also installing the 4-link AirBar system. My motor and transmission are setting at 3.5 degrees at ride height. I was planning on setting the pinion angle (front up) also at 3.5 degrees. Is this correct? Because of the low ride height, the back of the drive shaft will actually be a little higher then the front. Does this sound right? Thanks for the help.