I had heard that about the sprints. That is sad news.

USAC needs a rear engine pavement series. Almost had one but somebody didn't want to have to own a dirt car and a rear engine pavement car??? *** ???
Today you have to have one of each anyway.

Nobody will be changing to narrow tires. But it would take car of a lot of track problems.
Maybe a 14 inch wide. Equal the cars like e-mods.

Just thoughts