WXTU had been running the Cup series races for a couple years (unless run on a weekday due to rainout).
WNPV carries all 3 major series - Cup, Nationwide & Truck, with a higher priority than Phillies baseball but run in delay if live at the same time as Penn State football. I doubt if WPEN runs NASCAR it will just be Cup series. Also WDSD in Delaware and WZZO Easton carry Cup series races.