Constant air when bleeding

dadsbee said
As memike said. A badly flared line or loose line will suck in air yet not leak fluid.

At this point I'd check every fitting. If they seem good then I'd take the lines off the master and plug the ports. Find a firm pedal then you know it's good. Then work your way through each line and fitting. Could also be a bad distribution or proportioning valve sucking in air.

RustyRatRod said
Did you bench bleed the master cylinder?

I bench bled it in the vice, no issues getting it bubble free. After research on here, I also cracked the lines on the master with pops holding one pump to see if I got anything at the master. The car HAS been sitting for a little over a year, other than in and out of a paint booth, but I wouldn’t think a seal would fail that fast?

I’m not a brake expert, but I’m sure someone can educate me: are the front and rear circuits seperate lines to the block and then to the front/rear? To get bubbles on all 4 corners wouldn’t it need to be the block or upstream from there? I could understand an issue at the the rear since I bent and flared all those myself-but they’ve all been replaced this week by my pops, who is much better than me. Front were just hoses- the existing lines never had an issue with the KH brakes. Would an issue in the rear put bubbles at both front calipers? Sorry if that’s an ignorant question.