Horsepower to outdrive question?

[1BADBAHNER]

I have a 86 800 series OMC outdrive that was just recently rebuilt. I know they are not the best or even very good, but I was wondering how much horsepower or max RPM you can have before you start worrying about blowing something.

[Tahiti350]

I'm running a solid 350 chevy (well it used to be anyways...) about 300 hp, and have turned it up to 5400-5600, but have been told that is over the edge. I am getting ready to freshen my backup motor for LaborDay and hoping to make a few more ponies than the current motot had, so we'll see what happens.
If it kils the drive I suppose I can put a jet on it without too much extra work, and still be cheaper than a "good" 800.

[1BADBAHNER]

ttt