Ford 272 C.I. runs low 11's. Why do Mopar guys need 408's?

I agree, but why only a 408, it's a pussy cat compared to 440 -512 big block potential.
drivable high horsepower potential.
I prefer the 451 myself.
Don’t get me wrong, I like cubic inches. Especially a low deck 451. But there is a reason the 408 is the “norm”. It’s easy. And drops right in where any other small block lives.