Here is paste of the link.

7:48 - 158.463 km/h - Porsche 997 GT3, 415 PS/1440kg (sport auto 07/06) http://www.supercars.net/PitLane?vi...fID=2&tID=91836
7.49 - 158.124 km/h - Porsche 996 GT3, 392 PS (AutoBild 2004), http://www.autobild.de/tuning/testb...artikel_seite=4
7:49 - 158.124 km/h - Porsche 996 GT3 Cup, 360 PS/1207 kg (sport auto 02/99)

and here is the actual link:
http://wheeltalk.fancal.net/?p=476

The other 7:49 time is for a NON stock 996GT3 notice the 392HP.

Any way you cut it a stock 997GT3 is 6 seconds faster than a stock 996GT3 - which by the way is 7 seconds faster than a stock 430.