Teflon, eh!? That sounds better than nylon. I used nylon gaskets for a few years and never had a problem. Then had them flow just enough one hot friday evening to fill the top of my intake with pools of gasoline. Took about 40 minutes on the side of the gas station's parking area before the carb and lines were cool enough I could snug it up so it wouldn't leak. That's one of the reasons I went back to steel lines and inlets with metal gasket.
