Anyone here ever try their hand at porting them, or have any detailed articles on how to do so? I'm great with the old E7TE heads on the 5.0L, but I have no experience at all with the 4.6L stuff. I realize that the principals are the same, but the last thing I want to do is cut into a water jacket and junk the castings and I'm too much of a cheap @$$ to send them out and have them done by someone else. So....whatcha got?