[mrmustang]

When you got home, what was your water temperature reading? Perhaps your car is not set up with a thermostatically controlled fan switch, although I doubt that is the case, but you do have a manual override switch for it on the dash.
Now, with that said, if the car is a fresh build, sometimes it takes a while to burp all of the air from the cooling system. Over filling helps, but the first few rides, you will get coolant to overflow from the overflow tube, until a happy level is found. From the look of it, you may have inadvertently removed the coolant cap while the car and coolant was still hot. Don't feel bad, we have all done it at one time or another.


Backlit gauges might be on a separate switch on your dash, at the very least, with a 427 SC style dash, to the bottom right of your reverse speedometer you should have a dash pot rotary switch marked "panel". Turn clockwise to turn adjust the backlight on the gauges. Can't remember off the top of my head, as it has been 14 years since I owned my last SPF 427SC body style car, but if you still do not have backlighting on your gauges, you might want to check the toggle switch above it..Of course make certain your headlights are on and the car is running.



Finally, you had the laptop attached to the ECU, did you make any adjustments at all, timing perhaps?



Hope you find this helpful.


Bill S.