fuel filter or bad cap?

hello, it seems if my 1998 dodge stratus sits for a few days it starts hard and misses for a while then when it finally warms up it runs great. also i
noticed when it's damp it starts and acts the same until it's run a while. i changed the plugs, cap & rotor 16,000 miles ago. could this be a bad cap or partilly plugged fuel filter,which is the original with 116,000miles?any ideas? thanks
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replace the ignition wires

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Check the fuel pressure at the fuel rail to see if it is in spec JW
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