If you are going Turbo do it right... get forged internals, titanium valve springs & Retainers, new valves, and get the engine sleeved. With this done I'm told you can run 16 PSI daily driven with NNOOOOOOO problems whatsover... BTW... this is a dude who works at my shop saying this, and his B16 is pushing 22 PSI daily driven with no problems for a year and a half, so I trust the guy... hehe

~Peace