MSD wiring

As previously poster, I am rewiring my 73 Dart with a Painless harness and I want to keep my MSD box. It was originally wired with a kill switch to the small red wire to the box, so you had to close the switch and hit the key to start it. Can I eliminate the kill switch and just wire the red lead to the start position? Or the run position?
Thanks,
Bill
As long as the battery connections are connected to the battery I don't see why not...