car dosnt seem to be getting power?

I would guess that either you have further problems with the bulkhead connection, or that you somehow did not get it back together quite correctly, and now the ignition feed is not getting power.

Diagrams:

http://www.mymopar.com/downloads/1973/73ValiantA.jpg

http://www.mymopar.com/downloads/1973/73ValiantB.jpg

Because it cranks--does it crank OK with the key, or are you "jumping" the relay?

If it cranks OK with the key, this indicates that the ign switch is getting power

The only real possibility is that the contacts in the switch are bad for "ignition"

or the short wiring from there to the bulkhead

or the bulkhead itself

or the short harness form the bulkhead to the resistor.