I will keep hunting.
When the throttle cable inner wire is removed from the linkage, there is no issue.
and, FWIW, I have enclosed some pics. One is a little out of focus. Sorry. Hard angle to get to.
Attachments
20240605_151720.jpg (125.3 KB, 103 downloads)
20240605_152204.jpg (120.08 KB, 103 downloads)
20240605_152048.jpg (120.49 KB, 102 downloads)


1957 3100, 235 with 4 speed floor shift