Currently, nobody I've found has taken on trying to run a mechanical clutch between an RB and a T56. However, I'm about to attempt this soon. McLeod makes an adapter plate to go from a Muncie bellhousing to a T56. I just received one and am going to attempt to mount it behind my Lakewood scattershield, after modifying it to A833 bolt pattern instead.
Just so I become more educated on this mechanical clutch issue.... why would that be preferable to the hydraulic? The Hydraulic setup was super easy and it is so wonderful to drive.
We even used an i sting hole in the firewall for the lever going to the master cylinder. Todd