It's fairly old but was the first one I came across on a quick search (there's more out there, but I just grabbed the first working link I could find from someone I know):
Quote from the car owner about this sample: "I get a kick out of the AMSoil 10w40 "High Zinc" oil containing less zinc than $20 Rotella Wal-Mart oil. Both Rotella samples saw 280*f sustained oil temps, the Amsoil only saw 220*f (new oil cooler ducting). Both samples saw 3-track days/7-hours of track time and a road trip on both sides of the track action oil and I run the car at 11.5:1 at WOT. I'm no engineer, I've only gathered UOA data on the internet and done a few of my own. I run Rotella because it holds viscosity with some fuel in it, huge amounts of zinc, molly, and phos, and it's cheap."
Here's one of the Blackstone reports I mentioned - 
