Need help, Dart won't start...

^^Yup above^^

Basics........Compression, enough to run the engine

Ignition......enough spark and at the proper time

fuel...........FRESH fuel

Run a compression test? That will give you a chance to look at the plugs and see if they are oil/ fuel fouled or dry

Check spark: Get a spark tester at any parts store. "Rig" it to the ocil tower so you can see it through the hood gap, crank the engine USING THE KEY. Should have at least 3/8" long nice not snappy blue spark

Timing: You can check this "on the starter." Do you understand how to static time? And that you must have no1 on compression stroke?

Fuel......Is it fresh? The right kind? You check for accel pump shot at the carb?