2001 mercury cougar v6 - misfire - have checked plugs, coils, etc.; but misfire is still there.

What is your question?

Misfire / choking - worse when I have foot on gas peddle; if over 45-50 better

What makes this problem better or worse?

Makes it better and doesn't chock if I'm over 40-50 mph.

How long has your 2001 Mercury Cougar had this problem?

month