Actually we have added many articles to the site over just the past year. Where have you been? Yes, the "Cylinder Head Science" article was done about three years ago. However, the beauty of the Web is that once an article is done it is always there for the reading. And, I think that article is still quite helpful and valid.
What you suggest is quite extensive, and as one member has already pointed out, quite time consuming and expensive. I wouldn't expect something that in-depth any time soon. Although at some point it is possible we may do another head comparison or similar article, but again, it wouldn't be that comprehensive.
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Dan McClain, Editor
The Mustang Works Magazine
1991 Mustang GT - NOVI Supercharged 377 Stroker
1999 Ford Lightning SVT - Supercharged 5.4L Triton