Previously, restrictor-plates have been 63/64 inch sized fuel holes but at the July Coke Zero 400 Powered by Coca-Cola race at Daytona, they’re allowing 1 1/32nd sized openings. The size change is in anticipation of greater drag that the spoiler will produce, versus the wing that recently found itself replaced.
If that’s the case, we shouldn’t see much difference in the pack racing, but I can also hope for maybe helping the cars spread out a bit? Probably not, but I think it will generate a bit more speed as the cars hyper-draft each other throughout the day. Then again, that’s just my uneducated guess at the matter. We’ll, see come July 3rd at Daytona International Speedway!