Im a rookie at running NSS 1966 dodge Coronet 500 NSS/F 12.50 index. What is the format? Class run offs? all run? what days?...Im having all sorts of trouble with my R/V tow vehicle and didnt have time to ask around today. I was able to get 2 time runs today after the rain 12.61 then changed around the EZ plate and went 12.52