I swear there was an older article giving some tips and tricks to tune a dominator for street use. I want to say it was a powerglide car with 31s and a BBC getting around 8-9mpg. That would be about double what I get now. Anyone know what issue that was?  

I just consulted my CC library (yes, it's in the bathroom...why do you ask?), and you're looking for the March 2006 issue.  There's an article in there about how to tune a 4500 series (Dominator) carb for street use.