My car has been running horrible since I changed the plugs. They Are the autolite double plats. Well long story short I found out that the car parts store had a APP765 in a APP764 box. The ford dealer said the wire was arching but I looked at the wire and there was no signs of arching. I have a new one from magnecor. My question is now that I have the right plug in should I use the new plug wire or should I use the old one?
