If anyone has the opportunity, Symco on the last weekend of July every year puts on a huge show. Always the last weekend of July, don;t need to remember dates. They feature a different make every year.
Here is a nice video from 2020 of events. They do a lot of demonstrations starting Thursday, but the main event is Satruday they do the antique pulls. These are antique pulls without all the modifications, though sometimes the rebuilt ones get a little bump

. There is a dyno in case someone tries to sneak in an overtuned tractor. They also set a speed limit. This pull is about making those old girls work like they would have on the farm.
Massive turn out. The grounds themselves can take 3 hours to walk around and look at stuff.
Pull starts at 9 and goes usually till almost dark. By weight class. They had to lighten the rules on tire size due to the 13.9's and a few others becoming scarce. Some guys take advantage, some not. You can usually tell who spent money, the tires will be bigger, the sound is off a ittle because they upp'd compression, and they put a chrome stack on. I strongly prefer mufflers, stock tires, and really could care less if they full pull or not. I grew up with this stuff still active on the farm and it is like going back in time to my youth.
The late pulls in the 10K range and unlimited can be very entertaining late in the day, but is usually the smallest class. In recent years they have split this into pure stock and modified, but within their rules. Some guys get mad about the restrictions. That's OK, they can go to one of the other dozen pulls in the state per year. I think it is great to see someone with their JD 50 with a muffler putting along like what I remember as a kid.
Sunday they do a huge parade.