180Kh/s seems to be concensus MAX on R9 290 ... I am currently getting only 72kh/s and have tried over and over I don't know what I am missing !!!

I would kill to get 160kh/s..

Can you please post all of your configurations .. ( your config file and line arguments at launch if you have any)

Hoe many cards you have in your rig and what brand ?

Thanks