Pro Stock. Then and now

Say it what it is. The "BAD BOYS" of today are "Keith Black" Hemi motors, perfecting the Mopar ones. I'm far from an expert on this, but I would bet, they are not 426's. 10,000 HP is a lot of ponies.
500 cubic inches. Sure, they are all aftermarket blocks and parts, but they are based off the classic 426. Calling them anything but a Hemi doesn't make much sense.