how are these plugs?

too lean??

almost look new after 10,000+ miles with sitting all winter


bit of black around the edegs

 

A clean white insulator/firing tip would indicate overheating, timing advanced too far, air/fuel mix too lean, leak in intake manifold, improper engine cooling or just wrong heat range of plug for driving conditions. 94

 

yea i changed my plugs yesterday and wanted a more detailed break down, so i found this last night..

http://www.dansmc.com/Spark_Plugs/Sp...s_catalog.html