To nitrous or not?

150 shot is safe. Dont NEED forged internals, separate fuel sys. Etc. This has been covered many times here
I understand about the forged internals and nitrous. I know you can run 100-150 on stock internals. I was just wondering on the block aspect if I was to hit it with 200 shot. Some say the blocks are only good to 500HP others say 600. If I'm at say 350HP on motor and hit it with 150-200 thatll put me right there at that said point of block failure. I know with nitrous it hits harder then say a boosted setup. Or am I just reading into it too much and over thinking things?