The rules are on the mscs site,
46 LEAVING THE TRACK - If you leave the track at any time during a race, other than the A-Main, you cannot return.
1) However, during the A-Main you will be given the opportunity to pit and re-enter the race under a red or yellow flag condition. To be eligible to use the work area in the A-Main during a yellow or red flag, you must have a right front, right rear, or left rear tire that is down or have a nerf bar that is impeding the rolling of a tire on your car.
2) Timing for the number of laps to be counted to wait to restart the race begins when the first car reaches the work area.
3) No adding of fuel will be allowed.
they are a sanction and we will run by thier rules for this event. here is a link to the rules
www.mscssprints.com/rules.htm
Thanks, Dave