I did a front disc brake swap ( kit came with everything even brake lines) all new parts. master cylinder has been bench bleed more than one time with a big syringe made for it rod from booster to MC has been adjusted I bled the system I dont know hoooooow many times... I bled the system old fashion way , gravity ,2 persons then ..with a pressure tool i banged as well with a rubber hammer on calipers i even bled the caliper out of there bracket bleeder facing the ceiling to make sure.... there is no leaks yes the caliper are mounted bleeder valve on top only new fluid has been used now--- engine off I have a mid hard/spongy pedal and when engine is on pedal goes to the floor I end up by pinching the hoses to see if i could located the issue there is 3 hoses if I pinch the rear one , nothing change if I pinch the front one , both at same time , or one each time , I get an hard pedal......... any idee ????