Try this. Find out what cylinder has the misfire. Move every wire on the dizzy one forward and follow what terminal goes to which cylinder. Then move the plug from the original problem cylinder to a different cylinder than what the terminal is. Then move the wire to a different cylinder also. An example would be if the misfire was on cyl 5, the terminal would change to 7, wire could go to 3 and plug to 8.
Now, once you have done that, run the engine, (remeber to set you timing right), amd find the misfire. If it followed the dizzy, then that's your problem, or if it followed the plug, or wire, etc..