went to the track last night

Im gonna say experiment and try and try again, you'll know what works best on what nights and can optimize performance then...
If your running at the same track, ET's are going to be determined by Density Altitude, given that track prep is consistant. Get your sixty foot to a consistant 1.95-2.05 and then you can start to judge your performance. MPH is also a good indication, but a lot more factors you have to consider. MPH depends on Density Altitude, the weight of your car, and the amount of wheelspin you have off the line(60ft again), as well as some of other factors. 60ft is the name of the game, especially in the 1/8
 
what were your 60' times? Traction control should be off and drop your rear tire pressure to low 20's and your front tire pressure should be high to reduce rolling resistance. For your front tires, check your tires max pressure and fill it to about 5psi less. Practice slipping out the clutch on your launch.