Quick Question: Redish Coil Spark

[Zachary Lawson]

So my 1978 280z is flooding at idle. I was wondering if the coil had anything to do with it. When I unplug it from the distributor and move the coil wire about an inch from the body. I get a orangeish spark while around 1k RPM's. Shouldn't the spark be blue?

[SteveJ]

I don't see much use in that test. Measuring resistance and inductance of the primary & secondary sides of the coil tell you its health.