Time for a New carb

yea my dart had a 650 d.p. on it when i got it r.v. cam 294 gears got 13 m.p.g when it went bad i put a 750 eldbrock on it and was getting 19 mpg but i think the holley was faster i bought a new holley when i built my motor it flooded right out the box i returned it and got another eldbrock i think the workmanship in new parts suck