Ok, my other thread didn't get answered so i'll ask another question.

How much nitrous is safe with cast pistons/rods?
How about with hypereutetic pistons/forged rods?
How about with forged pistons/rods?
What kind of nitrous can be run with cast steel crank/production cranks?

The reason i ask this is because i have a complete motor that came out of the car with cast crank/stock rods, the pistons will be replaced but I'd kinda like some opinions on what stock crank/rods can do before i go buy new crank and rods...if i don't have to buy a new crank and rods i can splurge for forged pistons. I REALLY need help here because it is my understanding that i can use up to 150 shot on cast/hypereutetic pistons and up to 300 on forged pistons.

The reason I am looking at nitrous is because i can build a motor that makes good power and build it on a budget, and then when i need that extra oomph, it is there at the push of a button. But i want it to be safe.

Also, before i sign off, what kind of precautions are necessary when dealing with nitrous? what about the msg timing retarders and other electronic nitrous control aids?