Well now I'm more confused than ever. Reason? I looked closely at the brake lines coming out of my reservoir today and...all three port ARE being used (I think). Let me explain; the two fender-side ports have hard lines that go down and in toward the center of the vehicle and disappear, while the third (engine-side) port also has a hard line that snakes around the back of engine compartment on the firewall before disappearing underneath the battery tray. Without getting underneath the car, I suspect that the two-port side goes individually to a front wheel (1 apiece), and the third port heads to the brakes in the back. To me, that would make sense, since the front brakes are considered to be more important than the rear. It appears to me that in order to bleed the MC correctly via syringe, you'd have to do so with all 3 ports. And I still need to find a syringe; no one in my area carries one (that I've found yet).

Dan, I appreciate your input, but not sure I follow your methodology. I tried to find your build thread here---didn't find it, and sorry partner, but I'm not going to go through the 27 pages on BangShift to find what you are referring to. (A search for "master cylinder" and "bleed" came up with zero on BangShift.)

EDIT: After doing a little more searching here on the forums, I think I know what you mean now, Dan. You're referring to the "reverse bleed" technique at the wheels in the video below. I'm thinking that's great for bleeding the brake lines, but I'm talking about bleeding the MC first before installing it. Perhaps your technique, if done in a passenger rear/driver rear/passenger front/driver front order would work INSTEAD OF bleeding the MC first. Look forward to your thoughts.

https://www.youtube.com/watch?v=lBk00597EyE