An email tune is not going to give you the end result you want 99% of the time. Tuning a car is not as simple as saying I want X timing and BAM your done. Its much harder than that. You want a reliable tuner that knows not only how to tune the car but keep it safe.
With a built motor you want a real tune, and Henson performance in Huey Town, Alabama
does good work. Tell him SouthernStangs Mustang Club told you to contact him.