I have Brembo 4 piston calipers on 13” rotors in front and Dr. Diff 11.7” in back. 15/16” master cylinder with no booster and I’m reusing the 4 wheel drum distribution block.
For the first 10 years? with this setup I never locked em up but I never tried
(Edit-> except autocross.) The pedal effort is pretty high so I figured that was why I never locked up. Middle of this summer I put new carbon metallic pads on, first auto cross afterwards I burned two flat spots onto my front right tire