Ok. I finally figured it out, So i figure I should do a little write up for people who try and do the same swap/install.
So late model roller block into a 65-66 mustang, with toploader, and still using factory Z-bar.
1) you need the conversion bracket
2) You need the bracket for the other side of the z-bar to pivot on, which is located under the steering box, and the frame rail.
3) the bolts to mount the above mentioned bracket to the frame.
1) Mount the z-bar conversion bracket on to the transmission, with the "pivot point" facing toward the front of the car.
2) Mount the frame bracket on to the car, with the felt washer and bearing
3) The z-bar will pivot inbetween the header primaries if you are using LT's.
4) Mount the zbar onto the clutch rod, and onto the z-bar pivot and frame pivots.
5) Adjust the threaded rod which activated the clutch rod, as the distances are slightly different after the swap.
6) Hooker super comp headers will need to be clearanced to allow the bracket on the transmission to fit.
Hope this helps, because it took me a heck of a long time to figure it out, since i was missing the frame bracket.
Mike