Actually at the 2008 carpet nats they had 310 entries. it's 250 then they cap the classes so it at 250 they have 65 stock tc they fill till 70 12th scale had 31 sign up it goes to 40 being as it's 7 classes you could get anywhere from 7 to 63 more entries. At least that is how it was explained to me in 08 it may have changed in the last 10 months from approved to not approved so you might want to get a ruling from roar.