273 commano on the dyno wooooow

you are forgetting that that car in question has to run a period 273 for FIA European events. it's not like they had a choice and chose to run a 273. if caught cheating it'll not get invited back to the Goodwood Revival etc.

you are also forgetting that the owner of that engine isn't set to a budget so it probably cost more than a few mint '65 Formula S's would set you back.