jetting on a piped banshee lid off and reeds at sea level to 1000 is in the 320 main ,27.5 pilot, middle clip needle ball park
you can more then likey start a little smaller if your running stock pipes but its always good to start rich and move down and not the other way around..
for your screws that you cut off...do your self a favor go to sears and invest a few bucks into a impact driver.... they will get any screw out with the assistance of a hammer. great tool to have!