Chapstick also works on the gaskets if you can find it there. The other problem I see with your setup is using the mechanical pump with the weber - you are overpressurizing the carb and forcing fuel past the needle and seat - no amount of float adjustment will fix that - you need to run an electric pump with an output of 3-5 psi. Putting a reg on the mechanical pump will kill the pump in short order. I have run a weber with an electric pump for nearly 30 years on Geronimo and get 20 to 25 mpg on a regular basis.