Compared to faster cars, they will be very lenient.
Long pants
driver's licence
battery clamped down tight
hubcaps removed
stock seatbelts in good shape
full set of lug nuts
They may enforce the fuel line rule (max 12" of hose for the entire car), so if you have dual carbs with 3-4 feet of hose laying all over your engine, you'll probably be kicked out.