Some of those EZ heads take the larger offset rocker arm... They are basically a 440-1 with the standard exh port location..
I would imagine all these heads come from the same couple of molds...
Just like the SR and -1... Same casted head, just machined diff.
I would give the nod in the power department to the Victor head, although I have zero experience with these heads... yet...
Pick the power level you want then pick the top end...
Either of these should have no trouble making 750-800 hp without getting exotic.
On the same motor the Victor setup will make more power however...
It not a good comparison IMO...
Better compared would be the 44-1 or SR as these heads have both raised exh and intake ports, just like the Victors.