Any Holley or Holley clone with a sight WINDOW needs the fuel level half way up the widow. If it has a sight plug (why anyone would still use a float bowl with a junk plug in it I do not know) then it just dribbles out. If you have the plug, how could you have the fuel level be half way up the plug???? It always was a piss poor way to set the floats because the fire hazard is just ridiculous.
If you don't have bowls with a window it's time to upgrade.
Again, Holley or Holley clones with a window the correct setting is half way up the window.
