What's the limit for a stock 904?

At what hp level should i expect a stock 904 to break?(presuming its in good condition)

I'm doing a magnum build that very similar a member's here so it should put down roughly 300rwhp, maybe a little more. The stock 904 i have drives like its in good shape, but who knows how old it is or if it was ever rebuilt.

ran in the high 10s with a stock 904....tranny was build with a oem clutch disc...steels..and bands...

was using a turbo action cheetah manual valve body..

If it's in good shape it will take quite a bit. The weak link is the torque converter hub but if you aren't making over 600 horsepower it shouldn't be a problem.