Yup...you need to work on launching the car more aggressively. My '98 GT is bone stock except for 3.73 gears and a Performance Automatic transbrake valve body. I can usually 60' around 2.04-2.07 seconds. You didn't mention what DR's you are using. I use Nitto's and lower the pressure to 17psi. Heat them for around 7-10 seconds at 5000 rpm. Work on your launch rpm and "walking" the car out of the hole. Buzz that four valve engine up in the rpm range too. They like to rev and the ET will show it. Good Luck!
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SD Wheeler
M/M #30 '98 GT
Strictly Performance
MV Performance
"The Game"