help no brakes

i have a highly modified xj 3/4 ton d44 dodge front 3/4 ton chevy corp 14 rear cant get brakes to bleed have tried everything new master,calipers,has no spliter for brakes sys is split front to rear. still cant get brakes to work

What's it doing? Are you getting fluid out of the lines? Did you bleed the master sylinder?

Not quite sure what the OP says? No "splitter"? Does that mean you have a MC with 3 lines out and no distribution block? Modified hard lines? Did you bench bleed the MC?