[Oscar the grouch]

I’m fairly new to squarebodys as I was with the 67-72 trucks. I just got an all original 1983 Chevy k10 with the mighty 305 and 4 speed. I searched and read the treads on my issue but no luck fixing the issue, what I have going on is my dual tanks switch like they should but the gas gauge stays on 1/4 tank all the time, 1 tank is full and the other is empty as it ran out on me.