I agree with rt 67 to Martinsville. If you are west of the new Indy airport then take Ameriplex (this road has 3 names 6 points and Ronald Reagan pkwy) to 67. Don’t miss the rt 39 turn off of 67 or you will end up in Paragon (a good place to go Sat. night).
If you are coming from or to St Louis take Rd 46 from Terre Haute you will save an hour.
Yes Dillman road but if you miss it ¼ mi south is old state road 37 (Walnut st) Fairfax Rd is about a mile north.
At the track if you get there before the gates open (5:30) you can put up your lawn chair and reserve a place. I just came from putting up my chair and there are already two campers set up. The track has two entrances south (Fairfax) and west (walnut pike). I like the west one because I set in turn 4 and I am just a few steps from my car. I wear ugly yellow head phones so that I can hear the PA on FM99.1.