Hey guys!
I need some help with a disk brake conversion I just did on my 66' Chevelle.
The brake system I bought was a SSBC(stainless steel brake corp.) system from Jegs.
My problem is I have to pump up the brakes to get a firm pedal. I have bleed the system numerous times, and every time I get straight fluid coming out of the lines (no air). I have taken this thing to a shop as a last resort so they could pressurize the system and they couldn't get them any better by doing that, and they didn't seem interested in doing any furthur investigating for me into what the problem might be.
I have checked to make sure the rear pads were already lightly touching the drum, so I don't believe I'm having to pump up the rear shoes.
The way I have everything rounted is like this:
Coming off the master cylinder it goes to a splitter valve and off of the splitter valve it goes into a proportioning valve and a line lock. Coming off the line lock it goes to a splitter that divides for the front brakes, and coming off the proportioning valve it connets to the brake line that feeds the rear drums.
I hope this is not too long, but I wanted to try to cover it all.
Can anyone tell me what I'm missing here?

Thanks
James