Which plugs for a 347 with Victor Jr.s?

I am replacing my plugs before I drop the new 347 in the car. Which plugs should I go with since I have Victor Jr. aluminum heads? I thought maybe it would be different than the stock Cobra plugs. An Autolite part # would be great, if you guys can help. BTW I did a thread search and had no luck. :shrug: Mods in sig.