I found this https://performanceparts.ford.com/part/M-12029-M52 .I would be interested in this. I changed out the plugs a few months ago and no change.
Expensive, but I might do some shoppi g for a better price around and get those.
How difficult will it be to replace coils? I've heard some spark plugs are pita, but would just couls be different? Or, would it be better to replace sparks and coils?