Jack,
From the 2019 LTA rule book page 10, Section 3.A.3: ".......Blown cars, open or closed over 200 mph Suit SFI 3.2A/20.........."
From the loringtiming.com website: "Harvest Event - Thursday Aug 29 - Sunday Sept 1
As with the summer, if we do not have 20 vehicles that can run, we will shut down Saturday.
Please plan accordingly and if you are a weekend warrior, your weekend of racing should probably start Friday."
PM to follow when I get a chance.
Ed