I have a 1987 560 SL that seems to run extremely well; very smooth acceleration and idle. After changing the plugs, I noticed that some seemed to indicate a lean condition (very white insulator). The rest had the normal greyish-brown color. Would this be indication of a problem with the fuel distributor? IF not, what else could cause this problem. As I said, the car runs great otherwise.

Max

__________________
M. Sandler

1986 560SEC: 150,000 miles, runs great, but I've got to sell it (too many cars for one man)
1987 560SL: 122,000 miles, used to run poorly, now (thanks to forum), runs great!
1997 GMC Jimmy: Turned out to be a turkey.
1989 T-Bird Super Coupe: 150,000 miles, still runs great. Ford got it right.