Also this time I got a new air box and am not using the lid like before. 27.5 pilots needle 2nd clip and mains are 280. Ran great before except better now on top end. I normally ride at el mirage which is 2000 feet higher. Anyone think I should rejett. I'm currently at 900 ft here but can't ride down here. 300 mains? Or too rich at that altitude.