I have a 440 in a 73 Dart.
It had front drums and manual brakes:: stopped fine
It now has front disks and manual brakes:: still stops fine.
Properly set up either MANUAL drums or disks will stop the car fine.
The disks seem to stop straighter from high speed but the drums were also fine.
The rear brakes are 11X2.5 from a lincoln towncar.
The rear brakes do not overbrake unless you have a true emergency stop.
It has the normal disk brake proportioning valve.
I am running a 1-1/16 manual master cyl.