The "TV" cable connection is a little more important on this tranny,example on the TH350 the connection is souley a "kickdown" cable,it's not even needed for tranny to work(tranny will not auto downshift though).
On the TH700 it's main purpose is to control line pressure at part throttle thru WOT.The factory type adjustment of the cable can easily be made to work on carb type vehicles.

Check with Lokar,TCI and such for custom mounts/cables that will work with the rotating throttle body the engines use with throttlebody body mounted forward.....maybe something V-8 like TPI.
Good luck bro'

Bansil