I am wondering, I am soon going to be buying my friend's g20 with the DET swap in it (stock) and I am starting to look at mods. I was wondering, how much boost and hp could the stock internals handle reliably? Well that's about it...Thanks all.

Logan

The rods will start to give way at about 1.2 million horsepower, so realistically the safe hp is about 1.0 million on these engines.

Only kidding poncho. DET's have been known to support 450 on stock internals, 400 if you want to play it safe.