I used the info from dayclona, I believe that idle decrease is rich, not sure, I would have to check my info. either way set the screws so that there is no idle increase or decrease. cover the bleed and try turning the screws either in or out. hope this helps. do you have the promax plates? if you want, tomorrow I can look at my info and let you know.
Simple rule of thumb and mental note when blocking off the outer air bleeds of the outboard carbs for F/A mixing..."If it gets RAGGED (stumples) it's rich, If it sounds MEAN (increases in idle) it's LEAN"
