1974 Dodge Dart Sport
Nice starting point.
I'd suggest getting a Factory Service Manual. You want to get original factory manuals, not something like Chilton or Motor. These also are more in depth than the glove box owner's manual as they get into all systems, options, troubleshooting and service.
For this year there will be two, one for all the mechanical systems and one for the body and related panels and items. You can get these as electronic copies that you can view on your computer and print out pages for when you work on the car, or you can get physical copies that you can keep inthe garage.
Online versions can be here:
Service Manuals – MyMopar