How to Index my Duplicate Content?

I have a bunch of scraped content and they ranked on the fist two pages of Google for almost 2 weeks.

I changed the Url to a more friendly address.. Now they are completely un-indexed?

What happened.. and how can I rank duplicate content?

These pages have a decent amount of backlinks to them.

I went ahead and changed the URL back to what it was originally and did a 301 redirect to keep the backlinks in tact.

Google doesn't like duplicate content

Once you have been indexed by google the last thing you want to do is change your link.

In my experience, your site is as good as gone.... EXCEPT..

You delete the old post and repost them in the old format and reindex them the you should be fine.... this would be the only logical solution.

You can try other things....... if i were you ... i would just build another shitty site!!!