Originally Posted by
grip grip
While you're buying new plugs, higher boost wants 1 step cooler and a smaller gap (.035 IMHO). But you could always just buy some cheap copper plugs for now, and get some good ones later. By the way, did the plugs resemble any in this chart? Did you check the gaps on the old plugs?
No did'nt check the gaps on the old one's, but will at the crack of dawn. Also not sure what they looked like in good light because it was so dark, but thanks will do in the morning.