IRS has been been budget racing in Illinois, Wisconsin, Michigan, and Iowa since '92, same cars on dirt and pavement.
O yea here's the fly in the ointment that no one likes, they run the same tires on dirt and pavement.
Yep there goes the integrity of midget racing, small tires and restrictors and it's an amateur series.
Opps forgot, sorry I waisted your time, carry on poweri and usac, steel the idea and show um how's it's done by pros.
But they proved chain drives,national engines and stock blocks can all compete competitively with their amateur formula