OVERHEATING

On my 78 Fury,I had to replace the water pump a few years ago, under 50k miles "first time around" the odometer. Age got it not miles.
Anyway the first thing I noticed when I took the original one off and took the replacement out of the box was that the original had 8 vanes, the replacement had only 6. At the time I questioned the parts house, and was told "that's how they all come now a days". Bull$#it.
But I took them at their word at the time and that difference in water pumps took that thing from a car that never overheated to one that overheated every time I drive it over 45 mph. No other changes besides the water pump.
I've since re replaced the water pump with a"flow kooler" one and no more overheating. . I've even more recently replaced the original radiator with a 3 row champion (no way I was putting a Toyota -ish plastic/aluminum pile o' **** in my car) and a 180* stat and it runs too cool now.... Back to a 195 for me. This is a stone stock 318-2 bbl that even still has the lean burn.....