The best bite after a burnout is the next one so that is when you do not dry hop. When the tires are not heated you dry hop them once to knock off the sand and go. Only have been down the track at least 500 times or so.
So check yourself with the comments.
Mark run 14-13 pounds and see how it goes from there. If it hooks good then bump up another 1/2 pound until it starts to spin. And remember Mustangs like a little spin so that is something to think about too.
Make sure to get a very good tire pressure gauge and keep the tires out of direct sunlight if possible. Also know the on the first run you might want to start with one less pound than what you intend to run becuase they are going to gain a pound after the first burnout.