I disagree with point 4, Vizard writes plenty of books explaining how he does things. Not like he's trying to hide knowledge, not AT ALL. As for porting 302 heads (or any heads), I have no illusions that I can pick up a grinder and match what any decent head porter can do. However, watching someone go through a set of heads and explaining what they're doing at least gives a starting point to anyone who's interested in learning how to port. Or is that supposed to be some secret reserved for some of the head porters who get so bent out of shape when other people post videos explaining how to do it? I'm not talking about UT, he is a hack... but DV is certainly no hack, and I kind of doubt AW is.