If this is slanted as in the oven isn't even, then I would say put the cake on a cookie tray with a wedge of wood slid underneath one side or some other short pan under one side.
Or you could cook your cake at my friend's house, her oven is already uneven.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.