I've picked up a bit of what seems like a slight occational ignition miss in my '65 300 4 barrel, and just wondered what people like for plugs in these things. I haven't replaced them since probably 2003, and I really don't trust the auto store recommendations...they seem to be too hot for many cars. Thanks! Aaron
Well, it seems like nobody runs spark plugs in their 300s. I used R43S AC Delcos as a slightly colder replacement for the Autolite 85s in there. The 85s seemed nicely colored though, and I wouldn't hesitate to run another set in there again.
