Brake woes

I have done the following to my brake system.
New shoes
new wheel cylinders
new springs etc
new master cylinder
adjusted and bled
The pedal still goes almost to the floor . I have owned drum brake cars before and had decent brakes. What am I doing wrong ?     

Did you bench bleed the master cylinder?

from experience!!= 1st= adjust the =REAR shoes till the drum barely contacts the shoes!!- when there is any distance  between the drum & rear shoes -you-WILL!! have this  pedal symptom!! Than bleed  rear pass 1st then rear drivers  then front pass then front drivers last!! 

the master cyl. must be bench bled 1st before install.

I did bench bleed the mc . Ill try the adjustment and bleed again. Thanks

is the piston push rod adjustable,,,,,,,do you have some free play between the push rod and piston,,,,,, of course that master cylinder could be bad from sitting around for a long time,,,,,do you have the old one to try back on,,,,,,

plug the output of the master cylinder,,,,,see if you get a full pedal,,,,,

residual pressure valves did the trick for me when i had the same issue.