Eagle hemi carburate?

I should add, the Hotwireauto can benefit from a tune, however, the tune that's in it is good. Meaning like I said before, plug n play. I did a 5.7 conversion in a 72 Challenger 2 yrs. ago. 3.55 gear, OD 833, 2013 5.7 with 6.4 SRT auto cam. No "tune" on it. Customer reports 20 mpg.