So, I'm having issues with my carb....got the rebuild kit, replaced all the needles and o rings (old float), seems to have much better response....but....if it idles for more than a minute or 2 it shuts off like its getting too much fuel. not much of a carb guy, but I know I have put it back together the way it came apart. will the float not being level cause it to be getting too much fuel? and if so what is the proper "setting" for the float? its a holley 1920 1b