I moved my SBC back 4" so I can install a mechanical fan instead of having a push electric fan mounted on the front as I do now. Then I got to wondering if the electric fan should be mounted as a pull fan instead of using a mechanical fan. Unfortunetly if I did mount the mechanical fan it would only cover the bottom 1/3 of my radiator as I have my engine low because of intake and carb clearance. I don't know if the fan would cool the engine enough with the fan sitting that low even if I manufactured a shroud for it. Your thoughts?