Plugs and Things!

[mikeydf14]

Charger friends:  Been working on getting my 68 Charger running better. Finally got the new carb setup but I got to thinking.  The engine I have is not quite stock. The previous owner put in a fairly hefty cam but appeared to keep the rest stock (a pure assumption on my part).  I was wondering if a hotter set of non standard plugs would be a good way to go. I advanced the timing slightly due to some minor detonation which worked but I still want to make sure every possible drop of fuel is being used.  The engine is a 68 383 HP with 4bbl and Mopar Performance electronic ignition hooked up to a 727 with a 2500 stall converter. Any constructive suggestions of plug brand and gap numbers is appreciated.  Mike