Cap & Rotor? And if they're not that old but look bad, then your coil?
Maybe I'm paranoid, but I just went through this and shortly thereafter my coil failed, stranding me ('88 300TE, 177k miles, maintained fastidiously)
"If everything seems under control, you're simply not going fast enough" --Mario Andretti
1995 E500 street car
1986 Porsche 944 Turbo S track car