this will give you 2800 ~ 3000 mh on 290
if this worked for you buy me a beer
1KYPapEzhxvpLwb6eZB1DBg9joq2hVsz55
"api-allow" : "W:127.0.0.1,W:0/0",
"api-listen" : true,
"expiry" : "30",
"kernel-path" : "/usr/local/bin",
"protocol-dump" : true,
"queue" : "2",
"scan-time" : "30",
"auto-fan" : true,
"gpu-threads" : "2",
"gpu-engine" : "1050,1000,1050,1050",
"gpu-fan" : "30-85",
"gpu-memclock" : "1250",
"gpu-memdiff" : "0,0",
"gpu-powertune" : "20",
"gpu-reorder" : true,
"gpu-vddc" : "1.105,0,1.125,1.105",
"intensity" : "20",
"temp-target" : "82",
"temp-overheat" : "90",
"temp-cutoff" : "95",
"vectors" : "1",
"worksize" : "128",
"lookup-gap" : "2",
"shaders" : "0",
"thread-concurrency" : "24550",
"xintensity" : "500",
"failover-switch-delay" : "20",
"scrypt" : true,
"no-pool-disable" : true
}