I have had over heating problems at idle since adding a/c. Running down the road is not a problem. I tried electric pusher fans hidden in front of the raditor with a mechanical fan in back. That won't work due to a vortex between to two fans. I tried just the pusher fans without the mechanical. That didn't work due to the electric fan diameter is limited to the width of the condener. I am now trying a friends puller electrical fan with shroud with no mechanical. If it works I'll buy one. Yes, it looks like you know what but I have to have more air flow at idle and my wife says I'm not turning the A/C off waiting to get into a show.