What air cooler do you have? Is it the stock AMD cooler, or an aftermarket unit? It's honestly better to OC via the BIOS, setting manual voltages rather than leaving it on auto (like OD does).
Is this your first time OC'ing your CPU? If so, I would highly recommend you do some research, understanding the pros and cons that come with it. A good place to start is with this video from JayzTwoCentz. The 8370 you have is basically a more refined version of his 8350, meaning this guide will still be applicable.
However I would still recommend you look around and get a good understanding before you dive in. A lot of damage can caused if done incorrectly, so you need to be extremely careful when tweaking with voltages. You also need to spare a LOT of time you wish to achieve a stable OC, if you don't plan on tinkering for a over a couple of hours, I would personally not do it at all.
If you have any questions feel free to PM me.