Horsepower limit for out of the box Edelbrock RPM heads

When I am porting Edelbrock heads as bad as they need port volume to work I take some material thru "the pinch" off the floor and than try to avoid taking any as I approach the "short-turn". The short-turn is so pathetic on these heads why remove even more material. That's why a W2 head works so well. It has a nice arched short-turn that only needs shaped and widened.