I changed my fuel filter today and now it runs like crap. Seems to be running on 6 or 7 cylinders and smells strongly of unburned and wasted fuel out the pipes. I also hear gurgling in the carbs after shutoff and see some steam come out the tops. Seems to be very rich, like it's drowning. It cranks and runs but barely with an extremely low hit and miss type idle.

I changed it because while it ran very well at low idle/fuel demand it seemed to run out of steam at higher rpms so I suspected that it wasn't getting enough fuel to meet demand.

I'm thinking the filter that was on it before was somewhat clogged or restricted fuel flow in some way and now that I've put the new one on it has opened it up and the engine is now getting more fuel than it can handle and burn efficiently. How do I fix this?