Electric water pump recommendations?

I ran a Meziere electric pump with two 12inch electric fans pulling 2600 cfm for a short time. It was good for about a half hour of cruising, the engine temp would just keep going up till it hit 210 then I would shut it down. Went back to the stock water pump and 16 inch flex fan, the engine know run between 170 and 180 at all times even idling in traffic in 90 degree temps.