Again, you need to plan for your final objective....and thats the use of nitrous. For very low HP levels of nitrous, a cast piston can last for a while, provided you get the engine tuned real good before you start to mess with the nitrous. Carb jetting and timing are going to be the two things that will get you in trouble fast when you start to go forced induction, so think through all things carefully and moved forward step by step slowly when you actually begin using nitrous. How much of a HP nitrous setup are you planning to use.
