210 HP at the flywheel with no accessories hooked up. After 1972 they changed the way horse power is rated, 140ish is the NET horse power rating, which is at the back of the transmission with accessories hooked up.
WOW!!! The language on that video wasn't all that bad, but get a couple pages into the comments, and they are completely obscene and racist. I am surprised that stuff isn't filtered out on youtube.