I am with you 100% on the NA, the problem with Porsche power is the cost. My 4.1L build broke 420hp, BUT the bill was north of $50K (engine work alone!!!) I can build a 500hp Subaru turbo for less than 1/2 that and be MUCH lighter. But then again you just CANT MATCH the scream of a 993 based motor ringing your ears at 7k