What would you do,???.

No.... I did not take anything off/out of it. Their was hardly any ridge, it was mostly carbon build up. This engine is stock bore. It sat for a long time before I bought the short block a year ago. The corrosion is on the rear side of the cylinder wall, which I don't understand, and not the bottom. All other cyls are really clean. I'm not much of an engine guy. I'm using my book "how to rebuild small block mopar engines".
Dave