What am I missing here?

[JimmyL]

OK, in the never ending quest to find smoking cause, I was loosening injector lines while car was idling to see if it made a difference. Well, when #5 broke loose, my hand smashed into the vac line, snapping off the brake booster check valve nipple. Any wonder I hate this wagon?
Anyway, I had a spare from a '79 wagon (thank you Leathermang)
Man, the vacuum situation has me totally stumped. And it seems so simple, but it ain't working. He is the cliff notes version:
Pump at one end, brake booster at the other. Prior to brake booster is check valve. It is working. Old vac line had 2 nipples ('T's) in between pump and check valve. First 'T' went to tranny 3/2 valve on valve cover. Second 'T' (closest to check valve) went to several 'Y's, including line to door locks, line to ignition, and a couple other black lines that I'm not sure of at the moment. Here is the deal. My new vac line only has 1 'T' coming off of it. So I 'T'd off of that, with one going to stuff from nipple 1 (3/2 valve), and another going to stuff from 2nd 'T'. In effect, it is plumbed alittle different, but should net out the same.
I have 22.5 psi of vac (psi is probably not correct, but you get the idea) which is what I should have. If I run the 'T' straight to the line to the ignition, the car shuts off with the key, and the brakes work fine. When I 'T' if off to everything else, it doesn't shut off. It only sends about 2 psi to the IP shutoff, which obviously isn't enough. The ignition sw itself holds vacuum, the door locks hold vacuum(even though they have never worked). And most importantly, NOTHING has changed except for the plumbing differences from the main vac line. What difference is two 'T's compared to one 'T' with 2 branches from it?