Stumble stumble...

Hi all, been a while but I'm back with another question. Few weeks back I changed the fuel filter on my six. I have no idea how long the old one had been there but it was brown. Ever since I changed that filter, my car has stumbled on low to medium acceleration and I cannot get it to stop. I knew the float would hang up in the turns, so today I took off the carb and cleaned the hell of it. I put new gaskets on and put it back together and set everything back up and still I have this annoying problem. Is there any other things I may need to look at ? The plugs and wires cap n rotor are all fine.