I agree with Rob on this, I bought my exact same distributor 2 years ago and car is always in a climate controlled garage. 6 months ago I pulled the cap and had similar rusting......lightly brushed it off with a brass brush and some WD40, it's just the way this MSD distributors are unfortunately so in fairness to the seller he probably had no idea it looked like that as the outside did look almost new. Also to the idiot who feels like a big shot threatening people over the web and using the term " hommy " grow up because you sound like a punk and I actually prefer to not be part of any forum with punks like you on here.