Looking at the 74 parts manual, since I don't have a 73. The only difference in the pedal itself is manual/automatic trans. Power or manual brakes doesn't matter. Linkage has setup that reduces leverage into the booster, so if anything you'd have too much brakes without it.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
