Extra electric fan?

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I have a 512 rb that thankfully runs relatively cool. While driving around town in 90* weather it stays around 190. It may creep up to 195-200 if left idling for more than a few minutes. It has a stock mopar 7 blade fan and aluminum shroud I installed.

The cramped engine bay gets super hot and I wanted to cool it down after I stopped, like at a show or the strip. Would an extra pusher electrical fan be worth the effort to install? Also would it restrict flow that otherwise is working well? Any advice appreciated. I have a Holley super sniper with fan control capability but I am not sure that the controls would work after the ignition is off. I would like to have the fans run to cool it down while sitting and not running.

I have a 14'' elec. fan in front of my rad. , set to come on a t 205 if I remember right , also have a switch to control it manually . My fast 2.0 is programmed to run the fan only for a few seconds after shut down , urs id probably the same way /if not adjustable on the time .
I havent had to use mine this summer ----------------it will block air flow ''a little" out on the hi way , but not enough to concern me , cause the temp still drops out on the hi way .
I have the exact mate to that 14'' fan laying on the bench , with almost no hours on it , if ur interested .
Two wouldnt keep my 505 cool----------------