Howie, the dirt track you reference - it was visible on the Cozze Brothers avert from the programs back in the day. Seem to recall thinking as a kid that it was cool that a driver / family had a private track to work on the cars but maybe it was an unfair advantage. Kid logic.
They also had adverts under Deer Foot. Wonder what was with that name vs. Cozze Bros.?
Photo from the back cover of an old Naz program I own.