Welcome. It looks like you have a good looking start.

I would start by checking the spark plugs. You can tell a lot by how they're burning. A tune-up might be in order. Plugs, points, plug wires, etc may solve the problem.

A low-speed or idle miss might be a vacuum leak. A vacuum leak will smooth out with more rpms. But then again an irregular miss may not be felt as much with higher rpms.