Horsepower limit for out of the box Edelbrock RPM heads

We have purchased 2 pairs of the Pro Maxx heads 1 set for small block mopar, and 1 set for small Ford, very nice finish work on these heads.
GREAT news! Thanks. I have a set coming soon for the wifes ride. I did some poking around about Pro Maxx. I liked what I read and crossed the fingers that these bare China purchased heads were done and finished with American Pride.

If the below is true and accurate, this will make for a really good street head.

Flow Data @ 28″ water
lift ...200 ...300 ...400 ...500 ...600 ...700
Int ..142 ...202 ...251 ...278 ...284 ...286
Ext ..124 ...159 ...190 ...203 ...219 ...231