Okay, to begin I have the PBR front brakes and the 11.65 Cobra disc brakes on the rear. I'm running manual, not power.

From what I gathered I should be using the 15/16 bore master cylinder, is that correct? I have a 93 Cobra master cylinder which is a 1 inch bore. I shouldn't use that?

If I shouldn't use the 93 cobra MC which 15/16 MC do you suggest? I see the 94-95 Mustang uses the 15/16 bore but I also heard people use the jeep cylinder. What's the pros or cons against either? I see the Jeep is a bigger heavier cylinder and it looks like it's dual reservoirs. Is that a bonus or not?

Also when I decide on a master cylinder do I use the combination valve that came with my original car which was off an 87 Mustang? I believe it has 3 or different exits for each wheel. If I don't use that, how do I divide the holes in the master cylinders?

Any detail help would be very much appreciated. Thank you.