Pics are crummy. Best I could do in a dark shed.
I cut off the 90 on my throttle rod, and used a die to attach one of these:
https://www.autozone.com/fuel-deliv...1-4in-28-throttle-ball-joints/102978_0_0During that same project, I drilled and pressed in bronze bushings to all the pivot points in the bellcrank and such. They were all wollered out, egg shaped. The whole works is way smoother now and hangs less. But it will still hang maybe 100 rpm high unless I goose it a little to settle it down.
I also tried the fix HRL is describing there with the throttle plate procedure. That might be your issue, but it didn’t seem to be mine.