New guy- question about electric fans.

[Thilo]

Hey folks.
I have a '72 K10. Just installed the AC. Will be adding condenser electric fans (being shipped).
The truck has a dual electric fan setup, but it was about 90 degrees the other day and the temp crept up a bit without AC connected yet. I'm worrying about L.A. 110 degree days sitting still on a "freeway" (parking lot!) with the AC blasting.
Is there an electric dual fan that you guys KNOW will fit and work well on this truck?
350 with some kind of cam that makes it lope on idle.
It just seems like this is not a new concept and someone somewhere knows for sure the "BEST" one to use.
If anyone has more than anecdotal suggestions (like CFM comparisons, one having been used in extreme conditions like mine by multiple users, etc) I would be most grateful!
(I'm not opposed to wrecking yard options).

Or do I just go back to the belt driven fan and be done?