I noticed my '85 running a little sluggish at around 5000 rpm and up in 3rd gear today. So I decided to make sure that the spark plug wires were secure. As I was inspecting the wires I noticed that the # 3 and 4 plug wires had coolant on them where they connect to the spark plugs. The car seems to run fine. I see no oil in the coolant or vice versa. The heater blows hot. Does this mean by HG is blown? The car runs great but seeing coolant on the plug wires makes me think otherwise. What do you guys think?