I'm looking for an electric cooling fan. Getting one the right size doesn't seem to be a problem. My concern is how much air (CFM) do I need to keep a 12A cool with ambient air temps over 100 degrees F? Radiator is a stock 3 row 12 X 22 from an '82/83 with automatic transmission. Oil cooler is air type mounted under the radiator. The car has the overdrive pulleys, the bypass in the water pump has been blocked off and the thermostat is in place but gutted. The front airdam is a urethane type from British Victoria. The thermostat from the oil cooler has been removed and the bypass hole plugged.

1. What is the recommended CFM for a fan under these conditions?

2.Which works best a pusher or puller type fan?

3. Is through the core mounting OK or should I buy/fab brackets?

4. Straight or curved fans blades?