I've been having soem problems cooling my sbc. Currently I have a edelbrock victor water pump, and a 3" core triple pass aluminum radiator. It keeps my car cool when I'm driving around in coldish weather, but at idle it slwoly goes up. I have a permacool 16" fan, and was thinking about putting another one in there, since it flows 2950 cfm. But then I was looking at a dual fan setup with a shroud, but both fans flow only like 2600. Should I use a shroud or should i run the 16" and a 10" Or any other solutions?