Hi Joe.
Yes, above the EFE there is a small maybe one or two inch length of heat resistant rubber tubing (reddish/orange in color) which then connects to the stainless metal tube.
The stainless tube is held in place with a u-shaped clip, attached to the head bolt, second from the left rear.
Vacuum tubing is then attached to the stainless tube and goes around the back of the engine to the vacuum switch, which is found attached to the right head, about a third of the way forward from the rear of the engine.
I believe three total vacuum lines go to the switch. See the vacuum line diagram - same as depicted on the decal on the top of the core support.
Hope this helps.
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