Abstract: The Rayleigh Ritz variational method is used with a multiconfiguration interaction function and restricted variation method to obtain the energies of 2p 2 n p 4S o ( n =2,3,4) and 1s2p m p 4P( m =2,3,4) in lithiumlike B 2+ and N 4+ , including the mass polarization and relativistic corrections. Oscillator strengths, transition rates and wavelengths are also calculated. The results agree well with other theoretical data in the literature.