[Jeff Lee]

There's a big difference in launching a stick car on a two-step vs. launching an auto trans car on the foot brake. I think most would agree it takes more carb tuning skills with the a/t equipped car. This car & carb was built as a 4-speed combo and now it has been changed to an auto trans combo.
That would, of course, require a different carb tune. All I can say is the car used to run in the 11-'teens in Arizona.