Ignition help needed. 1973 Duster

So you are saying that nothing happens when you turn the ignition key but the starter will engage when you jump the solenoid in the fender ?
Have a cheap multi meter or test light ?
When key is on do you get current to the coil ?, ballast,
Remember that new doesn't always mean it works. If you have the old relay etc... reinstall and retest.
What is the condition of the wiring ? Can you post a picture of what you are working with ?