does anyone know why at some points on the run there is a large drop? like around 6k rpm there was a drop on one of the runs

the guy at the dyno mentioned that timing had been pulled, any thoughts as to why?


- 95 Mystique LS - Zetec/5spd - 99 Contour SeVT Sport - Duratec/5spd Official NE-CEG Contour/Mustang Family