Airflow - 4 fans, but need help with direction

cowboydude99

Honorable
Aug 21, 2013
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Hi,
I have a DiabloTek case (EVO).

It has 4 fans. One in the front bottom, one on the back-top, and two on the top of the case.

My internal components are:
i7 3770 - with Hyper 212+ cooler
2x 4GB g.Skill 1600MHz
1 PCI NIC
1 Sapphire Dual X - 7970 OC w/ Boost

The gpu creates a lot of heat. So my question is how would you setup airflow for this?

Right now the front fan is the only one taking air in, the others are pushing air out.