I stripped my Briggs 4hp engine down to clean/paint it and in the process destroyed the gasket that goes between the carb and the gas tank. I figured it'd also be a good time to replace the block to carb gaskets (there are two of them.. one large and one cut to the side of the carb manifold). Assuming I can't source them at the local mower shop I'd be making replacements but I'm not sure what materials to use. The gas tank to carb one appeared to be a paper style gasket but conventional wisdom says not to use paper style gaskets if they are exposed to gasoline. The other gaskets are a paper/rubber material. The local autozone stocks both a paper/rubber style and cork/rubber gasket material. Should I go with the cork material (reccomended for anything thats exposed to gasoline) or with the rubber/paper one? Should I use gasket sealer?