Well you are in VA, so you will need to look for a dyno shop or late model Mustang shop that has tuning capabilities. Take a look at http://www.diablosport.com/ and see if they have a shop in your area burning their chips.
A forum community dedicated to Ford performance owners and enthusiasts. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more!