Stalling when neutral and driving

Finally got around to working on it. The initial problem was the points and condenser. Should have been my first guess. Since replacing them, I've been trying to redial the carburetors fuel and air mixture. It still stalls occasionally, but not nearly as often as before.

Now I'm getting backfires. It's only happened a few times over the last week. There is an air leak at the exhaust flange (I ordered a new gasket) and I think I have the mixture too rich still. Every time the car stalls or backfired, I've leaned it out a bit. It's slowly getting better, so I think I'm on the right track.

It is an old car though and while I recently had the engine tuned, it's possible something else has gone awry.