Spongy brakes - 4th gen F-body swap onto 68 Cutlass

[borrone821]

just wanted to give an update (just got back from vacation. yellowstone with the kids = very highly recommend).
I still have a non-linear pedal feel. I have no problem stopping the car, but pressing down at the bottom of the pedal doesn't really lock them up. Still feels like something is wrong.

Is there a way to test the flex lines going to each caliper?
Driver side front when bleeding does not produce a lot of pressure; no bubbles when opening the bleeder and i get some fluid, but it's not enough to get through the hose into the fluid container.
I cannot think of anything else. Calipers are brand new.



Any help would be greatly appreciated. I'm going to keep driving it for the summer in Massachusetts, but really want to figure out what's going on