Yup, same story here. I'm also running 2 inline filters. The first one is a old style glass one with the screen filter, before the pump. and a clear paper filter one before the carb(Carb also has a stone filter so really 3). This set up appears to be working well but my tank on the 70' is a top feed design so it dosen't pick up everything like a bottom feed in the older trucks.
