Need Advice on '65 Barracuda Brakes...

When you replace these lines, remove your old line and press the pedal down once. It should go down to the floor. This will tell you if your issue is further upstream. Good luck with your project.
All done! Thank You Guy's! So, I had Two Collapsed Lines Front Right and Rear, Replaced All Three. Replaced All the Hard Lines and All four Wheel Cylinders. Distribution Block was a Non-Issue and the Master Cyl is good. I Did All the Shoes and Springs while I was in there.
I probably spent around $200 all told, but we're good now and It Was Worth It! Thanx Again!!