i am converting the drum front and rear brakes on my 1966 mustang to a dual reservoir ,manual brake setup.now,how do the lines go into the master cylinder?front brakes to front port or the port closest to the firewall?

 

you use your original distribution block, but block the rear port. Thgen run your rear brake line directly from the rear of the master cylinder. You will need some simple adapters, but easy to find at an auto parts store.