Not a Boeing man (yet) so I don't have accurate figures but an empty a/c at sea level on a standard day, assuming you don't have runway length/terrain/obstruction problems

will be limited to the min speeds based on a percentage of Vmcg/Vmca (Min Vr is 1.05 Vmca etc.)
Figures I see vary from 112 Kts to 130 Kts depending on type, 772-773ER.
Confused? ....... I am