vac hoses on VR V8

[rally_toy]

i know, i should have labelled them better but............
the vac hoses on a VR 5 litre........ there are 4 nipples on the manifold, 2 small at front and 1 large and 1 small at rear.. 1 of the front ones goes to the the MAP sensor, the large 1 at rear goes to the brake booster. the only other place i see that needs vac is the fuel press reg. so where does the other one go and does the press reg go to the nipple at the back or front of the manifold

[rickybobby]

front fat one to MAP
front skinny one to fuel reg
rear fat one to brake booster
rear skinny one to t junction for heater vacuum