I just pulled out of an old aftermarket carb kit for a Rochester B carb the float guage. It is pretty much just a cardboard "L" shaped ruler with measurments in 1/32 inch increments. As I recall, the instuctions had height adjustment settings for float setting with needle valve closed (carb top inverted) and then one for float drop with carb top turned right side up. Is that what you are looking for? Maybe I could find the instruction sheet and scan it for settings later.