is this an unstable a/f ratio?

[Hiitman]

i know the boost is low but i just replaced my wastegate. this is what the boost controller puts it at (it was at 16psi with old wastegate) anyway. is this an unstable a/f ratio? if so what are some basic things that can cause it to jump this much?

 

[GVR4592]

Are you talking about the little spikes at 4000 rpms?

 

[Hiitman]

heres a log with a higher boost. its very unstable after about 4300 rpms.

 

[Hiitman]

i was told to set my a/f ratio props from a guy on dsmlink. i thought the a/r ratio reading was inaccurate since it read from narrow band. but it seemed to be more accurate and consistant then the wideband readout. any ideas?