I had the same problem. I filled that void between the radiator support and the condenser so as to promote airflow through the condenser (instead of around it). I used a piece I cut from an aluminum sheet I had lying around.
What's your elevation? You'll get nearly 30" (29.9" reportedly) at sea level and lose about 1" for every 1000' of elevation (that approximation's only good to about 6000 or 7000 thousand feed). If there's a hurricane nearby, then less. If you're in Death Valley, then more.
Elevation above sea level - in feet and meter - with barometric and atmospheric pressure - <i>inches mercury, psia, kg/cm<sup>2</sup> and kPa</i>.
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