sreve

iTrader: (3)

i'm going to change the plugs, currently running stock delco platinums.
i have the timing tables dialed in pretty good but i am thinking i could do some more tweaking with a colder plug. any suggestions? used to run r42s in my bbc these new delco #s don't mean much too me. if anyone has a link to find heat range vs part # that would be a big help.