Horsepower limit for out of the box Edelbrock RPM heads

That’s weird because I had me Eddy’s flowed and they flowed 215 out of the box. My X heads flowed 208 on the same bench. And 450hp from a 10 to 1 410 is low. My 360 with stock X heads and 11 to 1 made 397 hp at the wheels and ran 91 in the 1/8th at 3450 pounds.