Carb cfm with ported heads?

I think I've mentioned this before with knuckle. The car is trapping at 103ish which is REALLY soft for a 410 with ede's etc. That's 340 with a mild cam range.

It should be making in excess of 450 FWHP and MPH would be in the high teens at 3300#
Agree on the mph, that's why I asked if fuel system was up to the task.