I ran a new suction line as well as a new return ine inside the tank. I welded some fittings on the end of the tubes that will accept a threaded fitting to be used from the fuel pump and the return line back from the TBI manifold. The previous owner just had tubing that such out of the tank and used rubber hose with a hose clamp. One of these was the cause of a fuel leak coming out of the fuel pump.