Gator, don't be too disappointed. I would put money on the fact that it's the traction control that is holding you back. When it kicks in, it deliberately pauses before allowing the engine to resume full power. That delay isn't too significant while driving around. But when you're racing it'll cost you big. Some say it costs you 2 tenths in the 1/4.
Completely stock, my best was 13.30 @ 107. Also, my track is at 1200 altitude. You should be doing better in Florida. But that heat is definitely costing you too.
I wish I knew the key to a good launch in the SRT. I got a 60' of 1.8 - once. I really wish I knew how I did it. I usually get 2.0~2.1. I spin on launch everytime.
But I'm certain that with a good launch (no spin out), and your TC off, you will break 12's.