Back in the 2004 time frame, when I rebuilt the front suspension on my '69RS (base V8, Powerglide, 2.73 open 10 bolt), as I studied what came off the car, my conclusion was that along with RPO N40 (power steering) I also had RPO N44; i.e. special steering, quick ratio. As I understand it, at least for 1969, the two distinguishing features to look for are the long (approx. 5.8" long) pitman arm and the "short" outer arms. The short outer arms have p/n LH-3954875 RH-3954876 and these were the same part numbers on the outer arms on my car.
Lock to lock on the steering wheel is about 2.2 turns.
If you haven't checked it out, I found the following site very helpful: http://www.pozziracing.com/camaro_steering.htm#Steering_linkage