I live less than an hour from there, so I go at least a couple of times a year.
A few things to keep in mind. First, PLEASE
make sure you stay on your side of the yellow lines. A lot of people don't and that makes for way more close calls than necessary.
The speed limit is 30, and several curves will have you down under 10mph, but there are several places where you can open it up a bit. Just remember it's easy to let your car get away from you. And the LEO's there will ticket you in a New York
minute for any number of violations - including speeding, crossing the lines (though they do it themselves) or having any kind of camera where the driver can see the screen.
While you're on the Dragon, you'll see folks parked in the pullouts with big signs like Killboy, US129Photos and MoonshinePhoto. Smile when you go by because they're taking pictures of your car. Then, when you get home, find their websites, look up the day you were there and the category of vehicle you were in and you can buy pics of your car on the Dragon.
Hopefully, you won't encounter any semi's on the Dragon. But, be prepared for a lot
of bikes on the road. Most of them respect the lines, but not all. At the south end of the Dragon is Deals Gap - mostly a biker hangout, but car clubs pull in there all the time. Their bbq sandwiches are awesome!
If you have the time, when you pull out of Deals Gap, turn left on Hwy 28 and go to Fontana Dam. The route there is known as Moonshiner 28. It's not as many tight turns in as short a space as the Dragon, but it's a much faster road and you can really get into some good twisties there. And the dam is a great place to explore and stretch your legs.
Sorry for the dissertation, but I love the Dragon - as if you couldn't tell. Have fun! Wish I could go with you.