Ackerman Angle Question

[Is1BadFord]

I'm setting up a totally custom rack system in my 66 Mustang. This system's based on a Sweet manual rack, and I'm using tubular tie rods in order to connect to the spindles. This is where my question comes in. I've found some great information regarding Ackerman, and how to eliminate it in the cars this kind of rack was designed for....stock cars. Thing is, it's all regarding a front steer spindle. I'm using the stock 66 spindle, which is a rear steer. This question may seem silly, but does reversing the direction the steering is coming from reverse how positive and negative Ackerman is determined? Meaning, on a front steer car, positive ackerman (the good kind from what I understand) is measured to the front of the car (the steering arms move forward, rather than rearward?). Switching to a rear steer, would this reverse it or would positive Ackerman still be forward. I need this information to determine the best mounting position for the rack, either centered on the steering arm of the spindle, or a bit to the front or rear.

Thanks!