Line Lock problems!!!!!

I am having problems with my line lock system. At the porp. valve, one line "out" to the to the front brakes has a plug. The other front line from the porp. valve leads to the line lock valve. From the LL valve it goes to a T-fitting and splits to the front brakes. The break system is healthy, Willwood disks on the front, they work just fine, but when the LL is engaged it will not hold the front brakes. not even at idle. I have check all the lines for possible pinching of the installed lines and did have to replace one, (the line replaced goes to the passenger side brake). It looked like it was formed with out the use of a bender so I replaced that part of the line. Also previously when I was bleeding them the passenger side did not flow out as well as the driver side. Since I replaced part of that line it now flows fine. And I checked all the lines forward of the T-fitting all the way forward to both calipers. They are all free flowing but they still won't hold!!! With the wheels off and off the ground I manually checked each front brake with the LL applied. I put a breaker bar between the wheel studs to turn the hub. I can not make the drives side turn but I can make the pass. side turn. Next I checked the caliper on the passenger side. I thought maybe I have a have some frozen pucks in the caliper. They are not seized, all four pucks are moving. The only thing I thought strange is the outboard pucks are extended out further than the inboard pucks.
The LL unit is a Biondo unit. When I first got the car they would not hold either. I replaced the unit with a new one. It did the same thing. The only difference with this one is the mounting bracket broke off the main body. So, I got another one (the 3rd Biondo LL unit). This time the bracket did not break off but the LL will still not hold. As I said, with out the LL, the brakes work fine but when you apply the LL they will not hold. Yes I know the LL is a one way valve and it is installed properly and you can hear the click in the unit when you apply it. I can still turn the Pass. side with a breaker bar but not the driver side. And when on the ground when applied the car still can't be held even at idle. The drivers side does not lock up either when HP is applied, it turns like the pass. side. Are the Biondo units just junk or what?? Also, I checked the previously installed union to the pass. side against the new union I installed. I found the old unions internal diameter was not as large as the new union. So reamed it to the size if the new one hoping that the reduced internal diameter was the problem. But it made no difference. Also the brake fluid is all clean and new. The break pads are worn about half way. They are not oiled or impregnated with rust from the rotors. I am stumped!! Help!