It was around the 163/805 area. Three honks by him and we were side by side from 60 to 120 till traffic. He asked what I had I said "optional performance gears 3.15's that's it". He said his GT was supercharged. I figured cam and full bolt on's. My vette is a pig, think this guy was pullin my leg ? I figure a FI GT would be able to pull with over 400 to the wheels. It was a m5 and the guy could drive. He didn't lose any ground on his shifts.