Thanks VolvoHordz, It is on a caburettored B23, the key was the extra track for the cruise control. It was probably with the engine, which was a B23e (note the plugs in the injector holes in the head).
Currently the auto kick down cable is proving difficult to source. A 740 cable is on the way though not sure if it will fit yet. The 240 kick down cables are too long in the inner cable.
Next on the list is a cruise control diaphram for it, it appears it fits into the throttle cable style mount at the bottom of the image.