Pinion Angle
Right now you are about 7-7.5* down at the pinion.
The idea is parallel lines for the trans output and pinion. If trans is 2.5 down, the pinion needs to be 2.5 up to get a 0 angle.
Street car, I generally install at 5 down and be done with it. So you need to be about 2.5-3 down at the pinion.