I'll confirm the above. My best was a 12.8 @ 112. So I picked up 2/10's and 3mph while gaining ~60 peak HP and a [censored] ton more area under the curve. The correction factor was actually just below 6,000 feet above sea level. One of the guys who went with our group is HUGE into bracket racing and has a portable weather station he picked up for a measly $600. Litterally it's like a handheld weather station. He is the one who gave the correction on the height, and he's the reason all the high HP cars put there stuff back on the trailers and left.
There was a TT Vette that was 10mph slower in the trap. There was a N/A vette (non ZO6) that was 6mph slower in his trap. And after that everyone decided to come back another day instead of taking the risk of breaking something.
