The attached picture is what my original tank looked like inside. I removed the level sensor so I could take a picture through the opening. This is what happens when Ethanol is used in fuel systems that were not designed for it. The truck ran poorly (underpowered) and I had to use a little manual choke all the time. Both fuel filters, fuel line, fuel pump and carburetor were red with rust inside.
"Adding CFM to a truck will only help at engine speeds you don't want to use." "I found there was nothing to gain beyond 400 CFM."