Thanks,

I did not see any other vacuum connections on the booster other than the big one that is threaded on that he took reading on and plugged which make shut off work.

I'd say 4 mechanics and myself looked carefully and could not find anything loose or disconnected.

Sort of points to Booster crapped out when Master Cylinder was put on.

Just due to go. Better for it failing in shop.

Need to get FSM out and find Brown hose still on dwg.

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1982 300SD