Clair and jimmy, are the last 2 questions about vapor lock, wot, and cruise just general questions? Or relating to the fitech?
Jim, it appears you are shopping the unit, so I assume your wot issue has to do with a carb setup?
Clair, same question, do you have a fitech?
Adding an extra vent or return barb to address either issue is not complicated. Just pull the sender and add it there(less risk than welding to a fuel tank) you could probably even epoxy it on.
I can't speak for every single mopar sending unit, but if the system has a vent elsewhere, and isnt vapor locking, then you should be fine
