I live here in G'ville and have been going since 1983. Don't miss Thursday, it is the best day of racing all weekend. They run the stock and sportsman classes Thursday and Friday and the wheelstanding cars are out in force all day long. No crowds either.
I almost never go on Saturday and forget Sunday unless you want to see the fuelers break records but they spend more time preping the track for those guys than run cars. Can't blame them, I would want a prepped track to go 300+ MPH.
Mikey