First of all, we are going to import old Blogger blog posts and comments to WordPress. To do so, go to Tools > Import. Select “Blogger” in the list shown, enter your login information and select your Blogger blog. It will do the rest of the work for you. That’s so simple.
Now, we are going to transfer old Blogger feed to WordPress. Sign into your Feedburner account and select your old Feed. Click on the “Edit Feed Details” and change “Original Feed” to “http://yoursitename.com/feed” . Click on “Save Feed Details” And you’re done.