440 carb jetting help

[Wr3sTl3b0y]

ok i know theirs a bunch of threads about this couldnt really find what i was lookin for 2001 440 kit slip on k & n filter no lid my spark plug has been dry and black when i take it out i got a 170 main i think kehin or w.e thinking i should turn the air fuel screw out or in? a partial turn


i have the carb sitting on a bench atm if any one can help