Well, I don't have the engine put together yet, but Benzmac just got done turbocharging his stock 16V. He's running 15 lbs of boost on the 9.7:1 compression ratio, which results in about 420 HP. Mine has a 8.5:1 compression ratio and 20 to 25 lbs of boost, which should yield 450 or so HP!!
Later!