Help Me Cool Down

On the water pump deal, i read a comparison a guy did on like 10 different big block mopar water pumps. It was on a motorhome forum and the motorhome had a 440 in it. The pump that flowed the best at idle and low RPM was the factory 8 bladed pump..not the 6. That 8 blade flowed 15 GPM from idle to 1500 rpm i think or something like that and all the others only flowed 4-7 GPM from idle to 1500. Being i had the most trouble with it running hot at idle and low RPM's i switched out the factory 6 blade to the 8 blade along with the radiator and fan and like i said, this thing runs super cool now. Not saying the pump is what did it but probably had something to do with it.. I put the 440 source housing on but ended up leaving the new 440 source water pump in the box after seeing how badly it flowed on that test as i already was fighting the heating problem, so i bought the factory 8 blade instead.