Re: 393W not running up to expectations
If the heads were decently done the intake is the cork. i DOUBT IT FLOWS MUCH MORE THAN 190ISH cfm bolted to a good head.
Do those heads have a raised intake port location. Torker IIs are the wildest intake Edelbrock makes that retains the stock port location well almost. Have measured up a few that are off a bit but possibly just due to tolerance stack ups all gone to the extreme.
The Torker II intake is a low profile single plane intake that will not make the power the Victor JR will. And yes I have actually used that intake. It is not a good choice for drag racing unless hood clearance is a concern.