If it's flooding, Definitely either your float, or the needle valve in the bowl is not seating properly.
Haven't heard the bit about gaskets. Honestly, I think people overblow problems associated with ethanol fuels. Don't get me wrong, I hate the stuff, but have found very little maintenance related issues so long as I treat my fuel prior to storage in the winter, and drain my carb down at the same time. It does play havoc on my small engines, but only if I let them sit for long periods with fuel in the tanks, as it would with my car.