I could be wrong but I don't think 2.2 psi of boost and a 50-shot of nitrous will make 600hp on a stock-stroke 9:1 383 with a cam and ported stock heads. More like 500, if that. I feel like that low of boost pressure would barely even overcome parasitic losses of driving the blower itself. Stock rods might hold up. Now if we were talking 6 psi and a 150-shot, much less likely.
I agree completely. The stock parts will definitely hold up to what he’s doing (50 shot and 2psi). BUT my guess is he won’t even get out of the driveway before it has a party pulley on it and big pills in the n20. I know I wouldnt.