power or manual brakes

I switched my 68 Cuda from 9" manual drums to manual front disks / 10" rear drums. The intial bite when you apply the brakes with the drums was better (due to the self energizing design) than with the disks but after that the disks all the way.

It takes a more pedal pressure to stop the car but nothing that is unacceptable. FWIW you can improve the braking immensely by purchasing better pads than typical part store replacements.

BTW, the 73 Dart that was the doner for my disk brake swap had manual brakes.