Brake pedal is really stiff

WHEN DID this problem start ??? what was done to make all this happen??? start from there.,...and what type of perportioning valve do you have ?? a junction block or a metered valve ??

heres some thing to try,,,,put the car on jack stands remove all the tires and brake drums,,,,get some one to push the brake pedal slowly,,and see ho wmuch the brake shoes move for starters,,,dont push the pedal to hard or to fast,,,,