Need new carb

I am looking for suggestions on a replacment carb for my dart. Right know i have a rochester 2VG on it. This is the factory carb. I have had it rebuilt twice and its still not right. I am tired of messing with it. I have been unable to find a new or factory rebuilt Rochester. If someone knows where I can find one please let me know. Otherwise i would like to find a different brand that would fit my intake. THANKS!!!