It's a '72 Camaro and the tank is probably the original. I found the in-carb fuel filters clogged with dirt and rust. I'm replacing the fuel pump and rebuilding the carb but I don't want to drop the tank out if I can help it. If I have to do that I'll put in a new one. I'm going to use a disposable filter in the line between the tank and the mechanical pump. Has anyone had any success with siphoning or ? to get most or some of the sediment out of an old tank? Thanks for your help.