FWIW, many of the really fast drag radial cars are running in the 7s with 3.42 gears and 29-30 inch tires. I personally know of a Super Street Outlaw NMRA Mustang that has run low sevens at just under 200mph with 3.42 rear gears, 28x10.5 ( non W ) slick, 389ci single turbo ( I think it was a 94mm Turbonetics ) water to air intercooler, and inline valve Edelbrock Victor heads. The trans was a 1.80 Glide.

These cars load the converter hard through first gear. It would be like leaving in second gear for many cars.

A 10 second street car with 3.23s could be done with the right converter and most likely some sort of power adder.