Thanks for the info Jerry. Based on what you said I know for a fact I do not have a stock sending unit. There's only 2 wires coming out of it, no fuel line. the tank has a hole in the bottom where that valve was attached. It's broken off now so the 7+ gallons of fuel that I put in the tank when I parked it is now all drained out and seeped into my yard where all the grass has died.

I'll need to pull the tank and repair the hole on the bottom. Considering if I want to put a stock sending unit on it or keep using the bottom hole. I looked at all the usual suspects and they all are selling the sender for $50. Any tips for find one that is under $30?