Boss 302 Had "Unfair Advantages" as well
 

I am very familiar with the Penske Trans Am car modifications, but this video shows what the Ford teams were up to...

Nice video you shared Steve. Yes Ford did well with those Boss 302 engines. Those cylinder heads had huge ports and valves. May have been a touch to big. I was offered a ride in a 69 Boss 302 street car, fast car and could rev like crazy.

These appear to be 15x7 crowsfeet and most likely 5 on 4.5, not the 5 on 5, he claims in the video. Not doubting the lincoln hubs, just going by the example given.