people with S-trims come on down

Im trying to be comservative. Its going on a stock block, i'd prefer not to melt the pistons.

What rwhp is actualy safe to make before the motor decides to go on permanant vacation?

Depends on the tune, but if you see 400rwhp, you're on borrowed time. I've had 423rwhp on a stock block and it did fine.
 
Being blown is great hahahhaa. With the stock pulley and power pipe, my numbers are in my sig. It maxed the fuel pump at 5800 though which I dont like. Also, I have a choppy tune with timing set really really safe. So I have some more left in it for sure. Should be good for over 400 Im pretty sure, but gotta fix the fuel system first.