05 F-250 misfire
 

I have a 05 f-250 that has the 1st and 2nd cylinders misfiring. I am getting codes 174, 300, 301, 302, 316. the ford dealer told me to change the coil packs on the #1 and #2 cylinders. I did that and reset my codes and it is still misfiring. Is there any suggestions on what else it could be? Thanks