[wayne robson]

Dave , just in case this helps, that top plug is to dark ,not good, your best solution is
to fit a full set of correct new plugs,the other plugs could be the same or worse.
What can happen is you stated that ,you started car once after sitting in storage,then later started again with bad miss,.When using Stabil and storing, should never start car
unless it is driven to until normal temps are obtained. While changing plugs check inspect
your leads ,and use correct Bosch WR 7 DC copper . hope you get her running great again.