carb adjustment/jetting

[throttlehappy]

Hey guys i am sure these questions have been answered but i am horrible at looking stuff up, been looking for hours. I just put new DMC alien exaust, and a pro power pack kit which includes dyno jet stage 3, pro design airbox modification, and k&n. I am running 280 main, stock pilot, and 4th clip on my needle which was by the jet kit. My first question is about carb sync and air fuel screws. A couple guys are telling me i can sync by ear and by checking both slide movments. I went over that and it looked good. I have been trying to adjust the air fuel screws but i cant hardly hear it, i think that is just me though. Are they suppossed to be the same amount of turns out or how far off could they be and still be normal. I ran it down the street and back and it has a hesitation off the throttle to pinned at lower rpm's. I am running at 60 degrees at 2000 ft but i need it to be set up to run safe at sea level at oregon dunes, but at home i run at around 4000ft with 50-80 degrees. The plug looks like i am running on the rich side. My banshee is totally stock other than what i have just done. Everything is fresh because the quad itself only has 30-40 total miles. Any help would be great to get me in the right direction. I am working on the pictures because i am sure you guys want to see what a brand new banshee looks like.