I am throwing in the towel on fiber gaskets on the carbs. Leaking on my Dino and now on my Stratos. They were installed correctly and tight. Over time with fuel and heat they lose their sealing ability. Strictly copper or aluminum from now on. Second time I have found the cloth covered fuel line leaking as well and they were just a little over a year old. I was trying to search for a premium grade cloth braided fuel line but I think none exists. BMW, Porsche, and VW forums all contain similar rants about the cloth covered fuel line splitting. Some PTFE fuel lines have a similar cloth-like cover but they are AN sized and use AN fittings and don't work with regular hose clamps. All of the above is just too much of a fire hazard. Using Gates Barricade hose for now.