Kickdown linkage

3 videos, all using 2bbl linkage on a 4bbl. The first video shows it on a eddy carb small block, but it's not really trying to show you the linkage in particular so stop the vid and zoom in. the 2nd video shows how to make 2bbl linkage work, but it's a holley. Same concept. 3rd is how it works
Mopar Plymouth Duster low dollar 360 - YouTube
Mopar 2 bbl linkage on 4 bbl carburator - YouTube
Adjusting Mopar Kickdown Linkage - YouTube