i was wondering what is the right gear for the front and the back for the 1/8 mile just ran the bike last night and it went 9.19 with just pipe and jet kit at 66 mph. it has stock tires on it.with a 6 inch extended swingarm.

 

If I were you, I would drop a tooth on the front sprocket and raise a tooth on the rear sprocket. You will get a faster e.t. if you have a perfect run trust me.