Your a half second off where you should be and trust me it's the DA. Do yourself a favor and check the weather and calculate the DA before heading out. Anything over 3000' will be no fun for you and keep you guessing. October will be here soon and you will get your window to lay it down. The summer is just no fun at the track. With hoosiers or mickey thompson drag radials there really isn't bad track prep. You will just have to find how low you need to have the tire pressure. I've ran as low as 14lbs, but have seen all the way down to 10lbs. Too low and you have some swaying at the higher speeds, can get a little tricky for you. With DA between 2000-3000 you will be in the 12.7's with just the intake.