I think I got the quotes right now...and what I said above. I'll stick with my 233 FPS.
My Allegiance set at 62 pounds with a 29 inch DL shoots a 422 grain arrow a touch over 280fps.
I'd be willing to bet mine at 62 pounds 29 DL would shoot a 500 grain arrow mid 250's.
At 70 pounds 29 DL I would bet it would be right around 270fps.