Another 416 on the dyno

not Another universe, but I´m confused myself so I will do another check after the Winter in Another Dyno just to make it sure for myself. I don´t have any experience of this at all. But I must say, that it was not the same car when I take it home as I left it. It runs like a sick bastard when it comes up in rpm. And I have drove fast cars Before :)

Horsepower = torque x rpm / 5252

Given the numbers you provided...739 torque x 4500 rpm / 5252 = 633 hp

If we solve for torque, it is... 467 hp x 5252 / 4500 = 545 lb/ft

Even correcting the conversion, it all seems very high for what sounds like a very mild 273.