You'll pass right through were I grew up. Lots of great roads there, but here are a couple of my favorites.
Hayters Gap (D to E) section goes pretty quickly, but it's about as crooked as a road can get, light traffic, and I've never seen a cop there:
The Route 16 Section will honestly wear you out if you're pushing it a little. By the time you're finished with it, you'll be ready to get back on the highway and set the cruise.
It's got lots of tight low speed corners where you don't have to worry too much about traffic because you can see them coming from above you.
Video: (Youtube compressed this one from the 16:9 format I recorded it in, but it's the only place I have it uploaded. The road isn't as narrow as it looks in that video)
The whole loop from D to G will add maybe 45-60 minutes to your trip, and it's a nice ride. If you run it and go back and watch these videos again afterwards you'll realize that I'm not going nearly as slow as it looks on film.
Edit: Those videos were shot almost exactly a year ago. This is the perfect time of the year for those mountain roads. And if you go....be careful. Those passes are no joke.