Fan
Control
The FFR instructions have you wire
the cooling fan to a switch on the dash. You then need to watch the temp
gauge and turn on/off the fan accordingly. Knowing how absent minded I
am sometimes, I wanted something automatic. I purchased a Ford cooling
fan temperature switch and wired it to a relay. I installed the switch
in place of an extra cooling passage plug in the intake manifold. Here
is how it was wired: