Pulled the carb apart today. the 4 emulsion holes are the same for both pri. and sec. sides. #1 (top hole) is .029",#2 hole is plugged, #3 hole = .026", and #4 ( bottom hole) is .091". All holes are below the recommended float level. Since they are all below the fuel level in the bowls, I don't think making the top hole smaller is going in the right direction to cure my off idle lean condition I'm looking at opening up the second ( plugged hole) to some size ??? Your thoughts? Remember, this is a blow through carb.