A998 Trans in '66 Dart

Since this low gear thing has been kicked around now a bit. I'd like to know what that 1st gear ratio is and how it compares to what other brands are running at the strip.
904/727 ratios are 2.45-1.45-1.00; some 998s are this as well
some998/all999 are 2.74-1.54-1.00

The standard ratios could be considered "close ratio" compared to the 999 ratios.