Sagacious is this street or strip car? I have never used electric water pump but was told by someone that has been working on cars for years that electric will not cool on normal street use, its for strip where it is used for short periods of time, The setup that tech told you is probably the best setup to use on a street car and possibly a strip car also as it will keep the engine the coolest it car. That is close to the setup I used on my 74 camaro and never had an issue even running in 100*+ temps in the desert.