Front brake line help

i have a 67 dart. i have converted the front brakes to the 11.75 rotors with the 73-76 a-body calipers. i have the entire front brake lines and prop. block out of a 74 dart with the factory disc brakes.

here are my questions.

Don't laugh, but which port on the master is for the front brakes? closer to firewall? or closer to the radiator?

I want to install my line lock system while i am re-installing my brake lines. does the line lock work better if it is mounted in any certain position in the brake line. my plan was to just cut the factory line in the middle and fabricate my own lower portion of the line.

pictures are greatly appreciated guys. as always thank you for your help.