Brian Posi feels your very knowledgable about the GT500. I'm looking to buy one and would like to make it as fast as a stock 2006 Z06 all the way up to 160mph. Can this be done on a stock ported supercharger with pullies and cooling mods and rear gear swap say 3:73, or do I need something like a whipple 2.9. I really don't want to buy another vet but hell it is easy to go fast. My avitar is A&A supercharged 590whp