I have a friend who crew chiefs a Viper in Trans Am SGT and you're only 20mph shy on top speed and about 9 seconds slower on laptime. I'll try to share a link to his video if you want to compare.
@@jasonstanford We were into a 20mph headwind down the front straight. Last fall I was closer to 160mph. I did shave some time off this year with the Supercar 3R tires. last two laps in this video my PDR timer shows mid 2:28's. Looks like that Viper is 2:20 flat.