People often try to fix multiple things at once. Your car failed because the fuel turned to evil goop. Make certain that the carb is the only thing you have messed with.
Remove the dashpot assembly, and the top of the float bowl, remove the fluid from the float bowl and then carefully blow out the jet, this is the connection between the body of the carb and the float bowl. Then, clean the inside of the dashpot and the piston. Use nothing abrasive, just brake kleen and a rag. Note how, when assembled, the piston moves up and down with its action countered by the damper and the oil in the dashpot. The piston moves a certain amount, and it is only necessary to have enough oil in there to dampen its movement.
Check the choke linkage. It should open the throttle slightly as it is first articulated, and then as you pull it further it should drop the jet. This needs to work properly.
Check any and all vacuum lines:  ower brake boosters, and ports that may have been part of removed emissions systems could have leaks. The same evil chemicals that allowed fuel to leach through the plastic of the float bowl cause pretty quick deterioration of many rubber hoses, so you could also have a substantial vacuum leak.
Still, several posts previously it was mentioned that nothing ruins gasoline faster than adding it to old bad gas. 1 gallon of old bad gas + 4 gallons of new gas = 5 gallons of bad gas. This is frequently played out on the racetracks of 24 Hours of LeMons.