The fuel valve seat is about much longer than the one I pulled out. I dont think changing the gasket thickness will help much. Ill try the tang, as this thing is really long compared to the other. I am a novice at this but what it sounds like your saying is the rebuild kit is more likely the correct size versus what I took out of the carb?

I think I need some major guidence. I ll have to call you monday at the shop as I bought the kit from your very highly recommended business. I dont want to screw it up!!!!