Correct Choke Pull Off

Hello All
Agreed (my bad) that I used the incorrect terminology of "pull Off"
The Pull off is a small Vacuum dash pot that mounts to the carburetor. That holds the choke on when high vacuum is present and will allow the choke to come off under load (low vacuum). Both the Pull off and the bimetallic unit work in tandem of each other.
I am looking for the "bimetallic" unit that works by way of manifold exhaust crossover temperature and or 12 vdc as noted in the pictures I provided.
Thanks in advance,
Stall Safe.
Happy Mopar :)
Arron.