Name of this part on a 225 slant six

you might take it off and clean it. if the coil ( that's what heats up and activates the carb choke) is it is rusted , I have taken some diluted muractic acid and soaked it jjsy enough to clean it some. BE careg=full or you will have nothing left. then neutralize it with water solution of baking soda.

as with most everything mopar, you will find a number of different choke therostates. many probably not available thru the local parts store. your carb might (???) have a choke pull-off which will work from carb vacumn. I would try to get the oem stuff working before I worry about a electric choke add on.