Ok so I have replaced my 72 brakes with 3/4ton stuff I bought the Booster and matching Master cyl. Now I was going to just use my P-valve BUTTTT the silly lines are reversed?? I mean that the old master has the larger hole in front with the smaller hole in back? The New master has just the opposite. Now the wierd part is the P-vavle's inlets are big in front and small in back like the new master but the lines used have one end big and one end small /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif I'm confusing my self....Ok so maby if I just scrap the lines being used and make ones that will fit and all is good?? So the back resavor on the master is for the rear brakes right? the front is for the front right? Man I think I had some crazy missmatch shiat on my rig????