With road racing sets, a good baseline will get you going at nearly every track. You don't really need specialized ones unless you really want to get dialed in, or it requires something unique like very long gearing.
What I start with on a road course is really soft springs (anywhere between 600-900 in the front and 300-400 in the rear), then really big swaybars, around 1.5 inches in the nose and the full 1 inch in the back. That minimizes body roll and keeps the car from sloshing around like there's a fishtank in the back. All the settings should be the same from the left to right for a completely symmetrical car.
For weight distribution, I set everything at 50% so the car is evenly balanced all the way around. Changing the distribution causes uneven wear and makes certain corners a real pain, compromising your lap. You can tune out a loose / tight condition by adjusting the track bar and tire pressures after that.
Max rebound and a compression setting between 3-5 in the nose keeps it planted and extremely responsive in low speed corners.
I have a ton of road racing experience on NR, so if you have any further questions, I'd be happy to help out.