Crankcase ventilation.

Alrighty, [ pardon the pun ]:
- perfectly ok to run the booster hose to an intake runner. Chrys did this on 361 2 bbl intakes...& possibly others.
- that will free up the correct PCV port on the carb to use for the PCV
- if the vac adv has been connected to manifold vac, then the engine builder/tuner was smart.