Depends on the tightness of the course, but gearing somewhere around 74-79 mph usually works well for fast stuff, shorter for tight local courses. On a Honda, many of us run between 15/24 and 15/27.
Gearing for an 1/8 mile is probably just a bit taller, but you’d have to try a few ratios out to see what works best. MG Greens or Hoosier R60A for grippy tires.
