 Are they both, I'm assuming they're the kit where it's all shrouded and so on, and how big are they? In other words, how much of the surface area of the radiator are those fans covering? So if you can picture a 56 Bel Air, the fan on the inside is just a single fan, but the shroud is aluminum, and it's the exact same size as the radiator, so the fan's probably like 15 inches, 16 inches. And it's pulling.