I'm with Drew on this. I always cringe when I see something like that old Car Craft article because forever after one part of it it gets repeated as "fact" without any thought into what were the testing procedures, any qualifiers the article might have mentioned, or other factors, like Drew mentioned, that might affect the "real world" outcome that was intended, like will my race car run quicker?
I actually agree but LOVE to post that now old article!
Why, one may ask?
Simply because I'm trying to draw out much more modern, compresensive and track-tested articles on the very same subject, rear wheel hp notwithstanding. So far no takers nor articles.......