At over 500 cubes, that shouldn’t be too hard really.

As a counterpoint to Cabs story, Todd at Comp Wedge pulled some pretty nicely ported RPM heads(over 300cfm) off of (what I believe was) a 493 with a smallish race roller cam that was in a very well sorted out bracket car(multi time track champion), and replaced them with some Hughes CNC ported MW Victors and the car picked up about 4 tenths as I recall(something like 9.90’s to 9.50’s).

One of the few dyno results I’ve seen from the MW Victors were from Brian at IMM.
As I recall the numbers were pretty good.