[mreid]

I read your saga. Can you post a picture of your engine? It would be helpful to see the fuel line routing. Also, does the fuel line (anywhere from the tank to the carb) come close to any exhaust components?

A couple of other things. Fuel line insulation can actually hold heat in vs. keep heat out, particularly if the line passes close to the exhaust at any point. Just because the regulator is designed to not use a return, does not mean that it will work well for your application. A return line would help immensly, but will provide a limited remedy if the line is too close to the exhaust. Picys please!