I have a 60 Electra convertible with a 401 that I cannot seem to make run smoothly. I bought it 6 months ago and have changed all oils/filters, put in a Pertronix Ignitor and coil, and changed all plugs. When cold it runs a little choppy. When hot it is better but still not very smooth. I finally tested the compression yesterday: Each side: (Driver) 190-190-195-190, (passenger) 185-190-190-185 With a teaspoon of motor oil: 200-200-200-195, 195-200-200-195 Are these OK numbers ? Here are the plugs (photos) some are nice and brown and a few are black (one is wet black ?) I am not sure what this all means ? Anyone have any insight to share ?