From our previous data on BaFe2As2 and BaFe1.9Ni0.1As2, one may assume that the superconductivity only affects the low energy excitations. But for Ba0.67K0.33Fe2As2, the doping substitution happens out of the Fe-As plane and does not interrupt the structure of Fe-As plane. This may be why the system has higher Tc than electron-doped case. Comparing the spin excitations at high energy range in hole-doped sample with parent compound and electron doped sample will be important to determine the impact of electron and hole doping to the superconductivity of these materials. Furthermore, the high energy data are also critical in determining the total spin fluctuating moment. A determination of these values and comparing them with parent and electron-doped compounds is of great interests.