Well, sort of.
While I have a 74 RR and the 74 904,
it looks like I have a 78 small block with a similar or later factory 4 bbl intake and an Edelbrock carb.
The kick down arm does not look like what is in the 74 manual.
I am not sure what it is from.
Anyways, with some help from this forum, especially one member,
I got in the right direction with the adapter and carb stud.
The TPS/kick down travels with the throttle pedal so is is forward at idle, and almost all the way back with WOT.
I have not had it out to see if it kicks down right in addition to moving the pressure adjusting arm. While a yard/neighborhood driver she is not quite ready to punch it on the open road.
As for the attachment at the lever, I tried two different types of set ups listed as kick down arm clips. I could not get either to work.
I did what I thought about doing before giving those a try. A drill, cotter pin, and washer.
Thank you for the tips and help