77Z LM1 350 mostly factory stock. Original owner so I know whats been done to it. Been sitting a little over a year so as Im going over it to bring it out I see the fuel pump hoses are hard as a rock. Changing them out makes me wonder about the diaphragm in the fuel pump. Is that thing gonna survive ethanol? I wish there was a convenient source for no ethanol fuel. Anyway, check your hoses in your old cars guys, something I never thought about, fuel leaks are bad.