How do you know what plugs you have? i heard all stock is platnium. But then somewhere i heard some stock plugs are copper? So which is it? or how can you tell? I only ask because before i spray i want copper, but i already have the copper plugs i can wait a week or two to get the tr6's or whatever they are

 

if you have headers you can see the plug by just pulling off the boot. the only way to tell is to look at the plug. best idea is to just wait and change them. a week is worth not jacking something up.

 

stock plugs if they are original should be copper. pull a plug and look at it. if you are looking for a good replacement look to some autolite 103s. pretty sure that is the number. dont listen to all the hype on NGK plugs; they suck. Pressed plugs are garbage. same deal with bosch. go either ac delco replacment or autolite.