It ended up being a vacuum leak. You could hear it with the hood up. I went ahead and replaced all the vac hoses, changed the oil, fuel and air filter. I really appreciate your help. This was my first time on here and all of y'all were very helpful. I am sure I will be back with more questions about her car. Thanks a lot.
Also, I have a 1973 Bronco that I am going to put a 5.0L into sometime next year. Full fuel injection and all. Would it be OK to ask engine related questions on this board (I know not in the V6 section)? I know it is not a Mustang but hey Bronco's were made by Ford, too. Thanks guys.