Dart 273 w/two barrel ?'s

Check for split hoses going into the carb. A vacuum leak will cause it to not want to idle.

Take the air cleaner off and get yourself a can or 2 of spray carb cleaner and dowse the carb including inside the bowl while the car is running.

Buy a nice book and dive in. Maintenance, like tuneups, is not that complicated and timing lights can be found pretty cheep. If you do the work yourself you will know more about problems that may occur when you are not near a mechanic.

Enjoy your new car and take care of it.

PS. if you get tired of it, let us know, there are many people here that would be glad to take it off your hands