This has become silly if not insulting. If you think the 600-13 is the pinnacle of wedge heads you need to share with Scody21 what you’re smoking. Wrong bore spacing to start with. I can find 10 off the shelf GM heads that make that head look stupid for the same or less money.
Let me know when you start burning fuel. Then it will matter what the Hemi does. And as Scody21 pointed out above, the LS is much more represented with 9 second and quicker pump gas stuff than the Hemi. And yes, it’s the bedeviled wedge head.
The Hemi holds its own with some form of supercharging. NA it can’t compete with a wedge. Not even close.
