warrior dpsFollow

hi. my char is a fury warrior it seems to be lacking in dps. my spec and gear is on this link http://www.wowarmory.com/character-sheet.xml?r=Sentinels&n=Levant
my combat rotation is blood thirst whirlwind and heroic strike. if there is more then 1 mob i would start off with a whirl wind then spam cleave. when slam procs i would normal
cast slam. is there a better rotation i can use