1974 318 choke question

First off, that little ceramic box never was weather tight. Inside are bimetal contact thingys much like the mechanical instrument voltage limiter, but times 2. Lets assume all that is really crap today.
It never limited choke travel anyway. Its purpose was make the choke heat and drop out up faster to satisfy EPA. I suspect the choke not coming fully off is result of a thicker base gasket installed under the carb. I simply carefully altered the bends in that linkage to get it to work right.
You really can't have a too thick gasket under the carb with todays "easy percolate" fuel. Thickest gasket you can buy, adjust choke link accordingly.
toss the electric assist controller in the nearest dump.