"A lot"... and "More than you're eating now".
Seriously, this is all searchable stuff. I'm not trying to be a jerk, but heading to the CF forum and searching around along with a few of the threads going here will get you going just fine.
Look up the quote from Rip on how much he used to eat... it's funny and provides perspective.
And if you don't think kettleball squat cleans are difficult, I say, step up to the med-ball
- CJ Kim