63 Dart front disc m/cyl?

I think it is only GM's that have 2 holes in the pedal. For power brakes, their booster inclines upward. I put a booster/MC in my 65 Dart and used the existing pedal.

Many people are fine with manual brakes with front disks. Use an MC with ~7/8"D bore. You can use a newer 2-bolt aluminum MC if you buy a ~$35 adapter plate. Some people just drill 2 holes in the firewall & bracket. I got an adjustable proportioning valve for $28 recently w/ Jegs logo. I re-used my factory distribution block as a front "tee" (see posts).

If you want a power booster, there is a fairly affordable one on ebay now ~$150 (see posts).