Heat Riser 225 slant six

Get a divorced choke form a 1945 equipped motor. Rock has this one for $10 new.
View attachment 1715464665
Not sure if it would fit but it lists for a 75 225 w/1945 carb. Standard CV149

1975 DODGE DART 3.7L 225cid L6 Carburetor Choke Thermostat / Heater | RockAuto

Funny thing is we have two lying around that look exactly like this part. But, it won’t even come close to mounting properly on the exhaust. For what i’s worth... searching Plymouth Duster ‘75 shows the right part. I’m guessing either my vehicle was modified from OEM or Chrysler used a Duster setup on the Dart Sport 225 for ‘75.