Over the years I have heard that an electrical fan has benefits over a stock mechanical fan. My daily driver is a '49 Chevy 1/2 ton w/ 235 6cyl, Fentons, one H-W, soon to be 2 deuces on a 50's Edelbrock dual intake. Still, I will only be around 150 horses, but that also means that an electrical fan could give me a couple horses with less stress on the water pump. Please assist me in preparing to debate a mechanical engineer (he's pro stock mechanical fan). Thanks to one and all.