settings for a PNY GTX 770 4gb card as follows

cudaminer.exe -t 1 -H 1 -d 0,1 -i 0 -l K8x28 -C 0 -m 1 -o stratum+tcp://useast.wafflepool.com:3333 -O <username>:<password> -a scrypt

this is for mining on wafflepool.com. The username/worker name is basically your bitcoin receiving address. your password can be whatever. they mine all different kinds of scryptbased coins such as litecoin, potcoin,dogecoin, and many others. these settings are getting me about 412 Kh/s per card. (i have 2 in sli. setting -d 0,1)

17BezcLVvFaumNDvGs4gofnH7MNTCQznaU Hope this helps some.