I had a 454 in college which was on it's 3rd camshaft. I don't know that it was due to oil. I pulled the valve covers once and found that not all of the pushrods were rotating so I am assuming that it never developed a good wear pattern. Eventually, the timing chain went out so I wonder if it was all poor quality parts. BBCs are supposed to be notorious for eating camshafts.
Tom, what part of it is way off? His data, his analysis, his conclusions? Quantitative data on this topic seems a bit nebulous.
