What Spark Plugs are you running?

[BOOTLEG]

Called a Pelican "Porsche Specialist" for guidance on the ~10 choices of plugs listed for my 3.2L engine. She asked if I tracked my car which would affect the proper plug choice. Neither of us could determine exactly how the internal combustion process would change with track vs. street asphalt conditions. She thought the gap might be different - etc...
It would seem the TStat, H2O pump, fans, ECU would all operate the same. Commentary from those with facts???