I need schooling - old vs. new engines

You can compare a G2 Hemi with a decent 440 and the 440 beats it up.

So why did the 440 disappear from NASCAR when the G2 Hemi hit the track?

And why are there no BBM's in the top 10 in 2021 ET records for the F.A.S.T. cars? The fastest BBM is 13 mph slower than the fastest Hemi and 8 mph slower than the closest Hemi.

And none of those are boosted, so...

Is the 440 a better motor on the street? Might be. Is the intended application and complete package a part of that comparison? Absolutely.

But to use a blank statement like above seems to be too narrow of a focus.