@Aloha Jen I've never seen a fuel return line installation on the replacement carb? I assume that you drilled and tapped it for the factory return line.
Upon initial installation, my new Aisan version of the Chinese 2F carb, experienced 'carb-drool.' So, that tells me that it probably isn't the fault of the the carburetor? My '75 intake manifold leaks fuel thru the crack in the bottom, and a small amount on to the header, if it sits longer than a few days. It allows me to closely monitor the situation without removing the carb, but, I've seen a puddle of fuel down there upon disassembly.
Upon initial installation, my new Aisan version of the Chinese 2F carb, experienced 'carb-drool.' So, that tells me that it probably isn't the fault of the the carburetor? My '75 intake manifold leaks fuel thru the crack in the bottom, and a small amount on to the header, if it sits longer than a few days. It allows me to closely monitor the situation without removing the carb, but, I've seen a puddle of fuel down there upon disassembly.