i'm not going to start a debate here. everything was ported up to around 74ish [?], then, if i REMEMBER correctly [???] there were trees on the rear of the intake manifold that went to a vacuum "enhancer", then to a temperature sensor in the water pump housing, then to the carb, then to the distributor and vacuum pots controlling the air filter snorkel flaps.
i just looked at a 440 out of a 78 newyorker, and a 400 from a 76 newport [both with thermoquads] that are on my shelf, and that is the way they have the myriad of vacuum hoses ran. they were this way when removed, and i just left everything as was just to keep the holes plugged.
i "think" this started in 74, because i remember the round multi-port "vacuum enhancer" on the china wall of my wife's 74 charger with a 400/727 combo.
remember, this is for the big blocks. i don't remember, nor have, any small blocks to compare.
so manifold through temperature [wax pellet] senders to ported.
i don't know what this setup could be correctly categorized.