ET'S with ported J/or other iron heads SB

I just don't understand why you guys stick with these heads. There are so many better heads out there even besides the fact that they aren't 30 year old castings that generally need extensive work just to get them back to near original. And if you are going to port them why? Save them for the resto guys, get yourself some real race heads, you'll be happier in the long run, trust me, I've been there and done that.