I just rebuilt the entire brake system on the Galaxie two weeks ago.
Blow compressed air through all the lines from the master cylinder to the wheel cylinders (disconnect the wheel cylinders if already installed).
Then install the wheel cylinders.
Install brake shoes and hardware.
Adjust brake shoes according to the manual.
Fill with fluid and bleed in the usual manner. Right rear, left rear, right front, left front.
Then do it a second time.
Recheck shoe adjustment.