1) What is the large diameter nipple on the back of the 1G manifold supposed to attach to? It's the one about 2/3 to the driver side, maybe 3/8" diameter, angled downward towards the firewall.

2) What is the large diameter hose that comes out of the EVAP cansiter (labelled "TO A/C") supposed to go to? It's also about 3/8" but the hose doesn't quite reach to the back of the intake manifold^^ or air conditioner.

3) The "breather" (90 degree fitting on passenger side of valve cover) is supposed to be routed back down into the intake, correct?

This is all on a 1990 California turbo, I've scoured all the FSM's, chiltons, and haynes.