Well if you're talking to me I'll say that I don't intend to ever do another Mopar article with cast iron heads. The last one I did was the 383 stroker article for Mopar Muscle. The Eddy heads picked up about 50 hp over a set of non-professionally ported 906 heads.
After that dyno test I sold the heads and I also sold all of my core heads. So I don't even have any cast iron heads in my shop anymore and I don't intend to ever buy any or work on any again. Breathing cast iron dust just isn't any fun for me!