From the info other posted - seems about right if you were getting 360kh before the nfactor kicked in

HD6950  mrc - 166kh   
"lookup-gap" : "3",
"thread-concurrency" : "11264"

HD6930 mrc - 151kh   
"lookup-gap" : "3",
"thread-concurrency" : "10240"

HD5970   mrc - 275kh   
"lookup-gap" : "3",
"thread-concurrency" : "10240"

R9 280x mrc - 300kh

R9 290 mrc - 320kh

R9 290 OC  mrc - 340kh

expect your hashrate to drop again in about 2 weeks time - this should be fun

Time: 1394192763 7 Mar 2014 N: 4096 Nfactor: 11


try playing around with your thread concurrancy and intensity

What parameters are best now for 290?
I use -s 1 --lookup-gap 2 -I 12 --thread-concurrency 16000 -g 2 --queue 0 --scan-time 2 --expiry 4 --scrypt --Nfmin 4 --Nfmax 30 --StartT 1389028879
and get only 132 Kh

my settings haven't changed ( but i do have 32GB Ram in my system - win7 pro )

microcoinminer.exe" -o stratum+tcp://mrc.blocksolved.com:3310 -u user.x -p x --scrypt --Nfmin 4 --Nfmax 30 --StartT 1389028879 -d 0,1 -g 1 -w 256 -v 1 -I 20,20 -l 1 --thread-concurrency 27400,27400 --no-restart -Q 0 -s 1 -E 1

i get 340kh

This is my .bat for cudaminer:

cudaminer --algo=scrypt-jane:MRC -d 1 -l K84x2 -i 1 -o stratum+tcp://mrc.blocksolved.com:3310 -u ilove.tits -p 123

thats for my 660ti gpu. You do not need jane:1393144187,4,30 with vers. 2-18-14 cudaminer. Just use --algo=scrypt-jane:MRC and it should work properly, and you do not need -H, -C, -m, -s, commands it usually autotunes for best preferences with latest cudaminer version I have noticed.

No more spam about blocks being found all the time
Thank you so much

still more coins coming out every day

Low buy = low sell ) so, it has some meaning, but it cant be controlled, MRC soon be on 4 different exchanges, so, will be dump and pump
and also some ppls play on short term rates changes

Hype can only push any coin so much with the current inflation. Services need to be developed to push this coin to the next level. Ask your self what your going to do to help promote this coin!!! 

Poloniex, Mintpal, crycurex at this moment, yes?  Alcurex at 10th March.  Also i sure others add after that because it will be (well, its ALREADY) profitable  

getting less and less coins these days ?

watch out with using https://poloniex.com/ because the site has major issues, you cannot trade anything.
It's more offline then online these past days.

here is more info in the poloniex thread https://bt.irlbtc.com/view/420836.440