Thanks, this sending only has a supply, no return line on it. The pump itself has two different types for inlet and outlet. The outlet (going to the carb) is a hard line threaded that gets connected to rubber line to go to the carb, so those connections are correct as they can only go one way.
I think I’m going to pull the hard line off, make sure nothing is blocking that off somehow going to the carb. Then I’ll look at the supply line to see if there’s a crack or break somewhere stopping it from creating suction. So frustrating that it was working before I swapped this out.
