Slight miss in my 69 Z28

[sixt9rsx33]

I THINK I found the problem. I put new condenser and points in and went to start the car. Nothing, no spark at all. I set the gap on the points and kept messing around with the new points. Nothing again. I re-installed the old points still nothing. Saturday the car ran. So I took the ground wire loose from the base plate and moved it around trying to see if there was any damage. Could not see anything so screwed it back to the base plate. Car fired right up. The problem is still there but it was not as bad as before. So I have to assume that when I was removing installing the points I was creating an open situation with base plate ground wire? I assume I have a bad ground?
I also checked the engine vacuum....just now...engine luke warm and perhaps not the best connection to my vacuum gauge. I had a steady gauge reading of 13" of vacuum. I think that is ok for a stock Z28? Will check again when the car is warm and I have the breather off so I can jam my fitting on the base plate of the carb.
Thanks for all the suggestions. Keep you posted on next steps with the distributor.