The reason why Chevrolet wasn't included in this article is because the brand didn't offer a 455.
I wonder how much more torque did the 454 offer compared to the cars in this story? The answer is not "the others didn't come close."
Your fuel mileage comment made me think about a friend's late 60s (67-68, I think) Buick Electra 225. With five of us and our luggage, that car made the trip from the Treasure Island Naval Base near San Francisco to the Dallas/Fort Worth area averaging 19 mpg! He had been bragging about his mileage, but none of us believed him until the first couple fill-ups on the trip. I can't remember the engine size, but the car must have had some very tall gearing.