Electric water pump advantages?

[Shadow1939]

I am working on a 1969 Firebird convertible with a 400 and 4L80 transmission.
I'm about 330hp at the crank, pretty stock and 3.73 gears. I'm seeing a lot of builds now with electric water pumps.
At this time it runs about 185 all day long on the freeway with a flex fan and aluminum radiator, came on the car, except at the light after getting off the freeway. It will go to 210-220 in a matter of 2.5-3 minutes. I know a electric pump runs at a steady rpm, so I would have the same flow all the time. I don't plan to stay stock, but for now I miss the convertible.
A friend is all so telling me 2 electric fans would help for the same reason increased cfm's over pulley fan at idle.
Please assist in my decision, since the cars apart I want to do it right