My first 2bbl to 4bbl swap.. scratching my head..

Well i want to have a kinda quick car even tho its a daily driver. i'm kind of on a budget and want to use the stuff i have. im in the process of getting an edelbrock performer intake. and i have a 600cfm holley carb that i rebuilt its a factory one from a 383. i'm gonna go ahead and get the electronic ignition kit from mancini. the car isnt running lean its running extremely rich. i checked timing it was advanced a little bit so i brought it back down to tdc. it ran a little bit better. But it has a terrible hesitation. and bogs out. lower rpm it feels like its dragging but once i get up into the higher rpms and highway driving the car drives beautifully.