sending unit question

Does anyone know at what ohm the fuel sending unit reads full and empty.Im looking for a sending unit for my fuel cell and im trying to get the closest unit to stock as i can.

thanks
-jake

The stock sending unit reads 90-0 ohms. They dont make a sending unit that Ive seen that reads that. My buddy has a 0-90 ohm sending unit on his truck that works, but the fuel gauge reads backwards.