Motorcycle Repair: Standard air mix S&S Super B 91, air fuel mixture, air fuel mixture screw

Question
Just need the standard air mix for a S&S Super B '91' on a 1972 Sportster, Also has a part number on the top of carb "N-1956" if that helps.
Thank you for your time
Michael

Answer
When setting the air/fuel mixture screw there is no standard. Once you have the bike running and its warmed up, slowly turn the screw inward, just until the bike starts to stumble and then turn it outward 1/4 turn and its set.
Remember, that the air/fuel mixture screw only controls the mixture when the bike is at idle.
Good luck and happy riding
Mike