I'm swapping my 85gt master cylinder and booster to a 90 master and booster. I have a couple of questions. The plug on the 85 connects to the proportioning valve, and on the 90 it connects to the resorvoir. Is it as simple as just splicing on the new plug? Also, theres a 3rd outlet on the master cylinder from the 90, can i just plug this one off , as the one from my 85gt only has the two on the side, and not one on the bottom as the 90 does?