The Susquehanna region is holding their 2-day PA states event Sept 1-2 in Harrisburg PA. The lot is relatively newly paved, smooth, large, fast. Runs for the past 2 years are in the 60-70 second range.
It's pre-registration only, so look on myAutoEvents or www.scca-susq.com
I'll be there at least 1 day in my WS6 (wedding other day unless I can run early and come Saturday too).
There's a video of my run last year on the Photos page on the SUSQ website, as well as some other vids from outside. My dad, a pro videographer, was shooting some runs.