i just ordered the Cobra rear brakes to replace my outdated SVO setup and wanted to know if anyone know if the same master cyl. will work. I think I have the 11/16 bore on there now, but not sure about that. I remember someone saying that for rear brakes it shouldn't matter about the master.

 

It will work, but it depends what kind of feel you prefer with your brakes. Some people like a somewhat soft pedal with some travel to modulate. I prefer very firm pedal with little travel.

Your pedal will probably feel a bit soft with that small of a master and those calipers for my taste.