help needed with 904

Also with my wild idea of having the cooling being self-sufficient if you will, I have ideas about making my own kickdown linkage? I have a picture of something here but was hoping to make something of my own in a similar fashion. What question would be is The lever coming out of the transmission spring loaded on its own? So all I really need is a cable with a sliding mechanism at the other end for the carburetor and of course adjustment?
1968-plymouth-valiant-lokar-kick-down-bracket-braket-attached-to-the-tailshaft-housing.jpeg