04 mustang misses

[garciap]

I need some help with my o4 mustang gt. I has new stg 2 comp cams and stg 2 livernois heads. runs good when cold and hot. Sometimes it pops when i shift. It also feels like it misses when its wide open. My ignition system is stock and so are my fuel system. Any suggestions will be considered. thanks

[Franco2112]

What's up Tex? My Expedition was doing the same thing. Ended up being #3 coil. How many miles on your Stang?

[garciap]

It has about 64000 miles. and about 600 on the top end. Thanks for the info.

[Aikosassie2]

Mine will do that if I have been running hard all day. When I stop for a few minutes (say at the light) and then hesitates when I try to go. In my case I think it was just because I was traveling and not letting it cool down much.