Off idle hesitation, or weakness is MOST of the time caused by not enough fuel in the off idle circuit. Sometimes bigger squirters will overcome it. But, I like to tune (before wideband tech)so I can drive real EASY without the squirters working. Getting the off idle fuel right, can give big increases in mileage. I've done it with many two barrel carbs. Owners claim 30-35% better over stock. (this is stock 2 bbl's that had idle tubes soldered shut from the factory )
