I love the build and the work you're doing. Do you have a steel fuel line running from the fuel cell to the inner fender and then the rubber line to your fuel pump? I would suggest either steel line or braided line everywhere and get rid of the rubber line. You can get an AN fitting for a steel line that uses a compression fitting and adapts the steel line to braided line. You may go through a ferrule or two before it seals, but they do work.Will use a braided line from here to the carb.