Long story but when I bought my truck it came with 6 new in the box 2344 spark plugs. Still have them. A recent article in MV Magazine on plugs for MV's does not list the 2344 at all. It has a chart, from hot to cold, and they all start with "22XX", no 23's. In fact, it shows the M-715 as needing AER72S plugs which are not on the chart either.

So, does anyone know where 2344 plugs belong on the hot/cold rating or should I just get rid of them and not ever put them in the truck?