Setups I used in SRO America, theres probably 3-5 tenths in the race lap but both laps were taken from the quali session and race session

IF THE CAR IS OVERSTEERY:

Stiffen front ARB/Lower rear ARB

Less front bumpstop range

Add front wheelrate

Less rake

IF THE CAR IS UNDERSTEERY:

Less front ARB/more rear ARB

Add front bumpstop range

Less front wheelrate

More rake