There is a small gas and oil show, and car show north of Detroit MI, one week after Iowa gas. It’s about an hour north of Detroit and about 8 or 9 hours from Des Moines. It’s not very big, but there’s a lot of cool cars too. You can Google it and research it. There is also a few videos on YouTube. It is called Utica’s Gasoline Alley.
Iowa gas is pretty cool, but if you haven’t solidified plans yet, you might want to think about going to Dixie Gas also. Dixie gas is huge. If you could stay for a month and hit both, you won’t be disappointed.