I bought mine used @ 66k, and am in the midst of the 60k service. Changing to NGK V-power plugs on Tuesday, and the PCV valve (picked one up at the dealer last week). Hoses, belt and anti-freeze appear fine, but school me on thermostats (because if I NEED a flush/new hoses on Tuesday, I'm changing it!).

I have a Superchips Flashpaq, & I notice you can re-program when the fan kicks in. Combined with say, a 180 degree thermostat, what does that PHYSICALLY do for my little 287 V-8?