Yous guys 'r doing it rong...!
Don't compare a 413 with a 440, just compare a 413 with a 383.
I see a 413 as a 'better' 383...

440's are good for racing because of the larger bore, but a 413 is just as good of a street-only motor as a 440.

I think maybe it's time for a percentage-wise 413 vs 440 SHOOTOUT !!
A 413 is just a "94% 440".