Paul,
The hole that I cut in the tunnel some time ago was in the
position specified in the assembly manual supplied with my 'kit'. Sitting in the car, that location appeared to be the correct location for a 289 car's gearshift.
Brett's car has the gearshift hole in the same location as my gearshift hole (as specified in the assembly manual) and he uses the middle location of the three available. As far as the Toploader goes, that part of the story is now (unfortunately) history.
So, the story may, in time, unravel further. If so, I will definitely post it here.
All comments appreciated, and if there's a lightbulb moment
that explains it for you (or for me), please post it here...
Cheers!
Glen