about ac vacuum system

[sk1pper@xxxx]

i know this might seem odd, but a wile back the center vents stopped 
working. the sides still did, so i knew the system was not a total 
loss. i found a man that worked at a dealership here locally that 
fixed it the first time. it was an unplugged air hose. bestdes the 
obvious "go back to him" fix, there does not seem to be anything 
unplugged. the air still flows throughout when i manually engage the ?
accumulator? under the dash next to the vents on the passengers side.

two questions

1. how much vacuum pressure should there be in laymans terms coming 
from the tube when i take it off the accumulator and test it in the 
palm of my hand.

not noticeable
noticeable
pulls the skin

2. does anyone know the installation sequence of the hoses to the 
back of the controls. ive noticed they have numbers.

www.sk1pper.com
vin #10246

ps looking for kirk brandon who owned a blue D. i still have his 
fathers license plate!