Enough Room/Air flow?

Maciek Fulton

Honorable
May 10, 2013
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I'm planning on CF a 7970 and 280x.
I know my case is big enough, im using the Thor v2 (Full ATX case)
But i'm not sure on how the top card will have enough Air flow when both cards are in.
Here is the Mobo http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546

and here is the inside of my case:
http://s1134.photobucket.com/user/maciek12/media/IMG_20131124_194553.jpg.html?sort=3&o=0
I feel like the first gpu would run into the second one (the 7970 sags abit)

So would it be ok to cf, or can the 7970 be placed on the bottom and the 280x on top?