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Welllll. As in any such project, the end result is very dependent on the condition of the components in the system. Even if you have an "NOS" set-up, it may have leaky parts in the vacuum circuit due to age, esp. the diaphragm in the pump. If all is good and clean, it will work fine but don't expect the "pressure-washer" output of modern systems.
The vacuum pump is a vacuum-cocked, spring-pressure-applied mechanism, so spring health is a factor as well.
To quote the part that Jon said (that applied) "hook it up and see!"
Hmmmmm. That is a good idea.