Re: oooooooo poo!!!!
That needle is made for adjustment to the altitude that you are at. You should run it and check your plug to see that it is running at the proper mixture. By droppin it (puttin the clip in the top notch), you are making it run leaner and by raising it(clip in the bottom notch), you are getting a little richer mixture. Makes for a little finer tuning in between jet sizes. When I ride much in the mountains on my four wheeler, I usually have to stop a couple of times to mess with the needle because we are climbing altitude so fast. If I didn't do that, the thing would hardly run by the time we get to the top of where we go.
Edelbrock Performer Series intake and carb, Tri-Y headers, K&N filter, 2 1/2" dual exhaust, 14 bolt FF rear.