I NEED HELP!! Traction Gone over nite...SSM

[Mustanger]

Ok, to start let me explain the problem. I was running 10.90s at 123mph. with a 26 x 10 MT Drags. I was using the eibach drag launch kit which I still have on the car with right side air bag. My 60' was in the 1.58 to 1.60 range. After my tires wore out, I purchased a new set of 26 x 10 ET street tires which all of sudden made my car look like I have doughnuts. I thought it would be the same size. Well since then I never hooked again. My 60' is in the 1.8 range now. I'm running a vortech 12psi comming out at 4 to 5 grand. A friend of mine convinced me to put SSM lift bars that it would help and it did imporve my 60' to a 1.71 but the car is almost on the ground since i put the southsides. I tried putting a bigger tire, but everything rubs cause the car sits so low in the back. I inflated the airbag, but it takes 40 punds of air to lift the car even and that would defeat the purpose of my drag springs and 50/50 shocks. I don't know what went worng or how to bring the car back up or was the tires size change my initial problem? I just need someone to help me bring my car back up to fit bigger tires. I wanted to fit a 28 x 10 drag slick. Any help will be greatly appreciated, I'm just done breaking my head. Thanks everyone for even reading my sob story..