How Much HP Can a 8 3/4 Handle?

Wouldn't it also depend on how well your tires hook up ?
yes ,14 and 16'' slicks did hook up a few times. We got to striping ring gears in the 8 3/4 , axles held up surprisingly well .
I twisted the summers brothers axles in aq 9'' ford bad enough that they were hell to get out , but never broke one.