My car pulls really well up through 110, or so... after that, it gradually slows, until I reach peak at about 140-ish.
The biggest drop-off, however, would be around 90-95, in 4th.... anything after that isn't a DURGE if you slam the pedal. it just starts pulling hard... Then again.. that is why I like the duratec.. it just KEEPS ON pulling, and pulling....
Ray