Hi,
I get only 3.2Mh, but i have 290x

My settings:
"kernel" : "x11mod",
"xintensity" : "50",
"worksize" : "64",
"lookup-gap" : "0",
"thread-concurrency" : "8192",
"gpu-threads" : "2",
"gpu-engine" : "1000",
"gpu-memclock" : "1500",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"shaders" : "2816",
"temp-target" : "70",
"temp-cutoff" : "85",
"temp-overheat" : "80",
"temp-hysteresis" : "3",
"api-allow" : "W:127.0.0.1,W:172.17.0.0/20",
"api-listen" : true,
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "28",
"failover-only" : true,
"failover-switch-delay" : "60",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "7",
"tcp-keepalive" : "30",
"shares" : "0",
"kernel-path" : "/usr/local/bin"