Big Block Cylinder Heads "915 vs 906"

So that's what, 1.54hp/ci? Out of a low deck 451" 9.7:1 compression? I'd love to see what the duration is on that camshaft for one. It's not a secret that you can crutch cylinder head with a ton of camshaft. I'd also love to see that actual dyno sheet.

Crutch? That's hilarious. How do you break down dyno numbers to tell what's crutchin what? You should do stand up comedy.