Boofhead

No, I don't think so. I can tell the following:
There is a guy here where I live that drag raced a Datsun coupe with a A15 motor in it. It was obviously worked with 40 sidedraft webers and a 300 cam.
He used the mechanical fan.
They removed the mechanical fan and changed to electrical fan. They blew head gasket due to overheating. I think the fan did'nt work correctly. They then changed back to mechanical fan.

The quarter mile times were'nt affected.
I also think you will see the difference on the dyno.

Boofhead.
Did you run a mechanical fan before changing over to electrical fan?
And when you switched over to electrical, did you notice any difference.
My posts I purely give on theory and not practical experience. So I may be wrong.