Hey, that is a pretty sharp looking steering wheel!
I would try some seafoam in the tank. I've never used it, but I hear it works wonders. Timing could easily cause your problems if you aren't absolutely positive you put the distributor back in the same spot. When I got my new distributor, I had to back off the vacuum advance alot to get the car to rev off idle, because it would just bog/stumble and die. Do you have vacuum advance?
it, I only have one converter, so I've never had to deal with a clogged one, why do you think it's a problem?