QUOTE(rhodyguy @ Sep 2 2016, 03:58 AM)

Dimple the rod so the tapered end of the set screw seats in the rod. Jwest (member vendor) offers a cheap solution to the one time use tapered screw. Bolt with a tapered end and a jam nut.
Beautiful car. Must scoot with the t-4 and the HP to weight ratio.

Kevin nailed it,you could dimple for a standard set screw with a lick of locktite,for adjustment you could do it in several places ,this could be done when you have found the sweet spot.
Is that rose joint running on that angle all the time?,you need to get the whole thing on a straighter plan if possible,without seeing the setup I may be wrong
Have you replaced the guide bush for the rod in the shifter rear console,some replace with a metal one as the plastic stock one is loose in the hole.
That is a stunning car,one of the best I have seen, more pics would go down well.