Join Date: Sep 2002
Location: Westchester County, NY
I'd need to dig around to back this up, but I recall guidance that said not to run the stock range plug, that it was entirely too cold for a street car. I'm running an NGK that was one step hotter, recommended for street cars to burn off the usual oil and carbon deposits. Anyone else, please feel free to bring the tech on this.
1986 930, 1969 Mach1, 2003 540 Sport