> 6'5" 450lbs can run under a 5 second 40m.
Nope. I would say that there has never ever been anyone ever who was 450 pounds who could run a 40 yard dash under 5.00.
In the NFL, there are big guys who can run real fast. But they're not 450 pounds.
Greg Robinson - 332 pounds, 4.92 40. Dontari Poe, and others have done about 350 5.00, but not 450 5.00.