Hope this reply isn't too late.
The track is NE of Gainesville on CR 225, which runs N/S. If you come in from the north, odds are you will be parked on the Spectator side. Coming in from the south (most traffic comes that way) may put you near the pit side gate which makes a walk back to your car for a break not to bad. The way they park you, it doesn't pay to get there real early, like 6am, you'll get stuck further from the gate.
And remember, when your near it, you'll hear it.