If you're leaking raw fuel, it's probably not the gasket under the carb. Instead, it's probably the bowl gasket, float, needles, or all the above. I know it's not good news but you're probably looking at a rebuild rather than a simple gasket swap.
You probably should ask Leeann about prices and availability. My experience and knowledge is more or less limited to Carter BBDs and AFBs. (Plus one Satan-spawned Ford two barrel that looked like a four barrel.) Leeann's knowledge and experience is better than mine in this area.
