2020 small block race?

I went 8.4's and 13.3's. Chart says 8.4's would be 13.1. So in his small block race I'd be better off turning in my 1/8 mile time. by the chart, I'd be a little better than my dial index, especially if I just reported my 1/8 mile time. But it would ball park it for the sake of the race.