You don't need power brakes on that little dude.

You do need disks on all fours, with adjustable valve on the backs. I had 68 Camaro with all drums that would not stop well at all when wet. I believe you drive yours occasionally in the wet stuff?

Look at my photos; you need a WILWOOD aluminum master, adjustable rear brake valve (in photos), and 4 wheel disks.

Light car, manual 4 wheel disks, very happy and safe driving!

IMO drum brakes are too outdated ..................

Kitz