nos question

I am about to install 100 shot of Nitrous Oxide on my 97 mustang GT. It is basically stock with pulley's and a 1999 Cobra tranny with a steeda Tri-ax shifter. What kind of 1/4 times can I expect? I'm a pretty good shifter. What else should I upgrade on the car to help keep the car running right. I plan on only spraying every now and then. But my main question is what kind of times can I expect with a basically stock 97 GT with a 100 shot of gas?
 
I would def. get a dyno tune and upgrade the fuel pump. You will also want to get a WOT switch and bottle warmer too. They are all good ideas when you are spraying. You should be able to knock about a second off your time as long as traction allows.