440 Water Pump Pulley/Crankshaft Pulley Sizing to Overdrive Water Pump

I am looking at options to overdrive my 440 water pump. My existing pulley setup is the March Serpentine Kit 40550-8 in black powdercoat. This kit has been on my 440 for over 20 years. No cooling issues except in Florida. Go figure.
My idling temp creeps upwards to 210°F with a 195°F thermostat. I am using all factory cooling components except for a Speedmaster High Volume water pump. I had a Milodon water pump previously and had the same issue. It may be that Florida is just too hot and...

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Author: MoparCarGuy