Ferrari Mailing List: Overheating 308

[georgedodson (georgedodson]

When I first got my 308 it overheated regularly here in Tennessee. I looked
at the ignition burn using a Colortune clear insulator spark plug, a
holdover from my British Sports Cars days. It was running REALLY LEAN (way
into the blue). I set the fuel mix to the correct burn color and never had a
problem after that. Oh, the Colortune corelated exactly with the exhaust gas
analyzer.