Missing at wot

[selmerguy]

I am having a problem with my car. It wants to miss at wot and also sometimes had a hard time starting. Both these are because of spark. I have had several hard starts in the last week and I know the injectors are firing. I replaced plugs and wires and it will still do it every so often. It will also miss when I get on it after about 5 grand. It was running fine a few weeks ago this just started.
Things I know:
compression is 147-150 accrossed the motor
replaced plugs, wires, CAS, and the only boost leak is on the TB shaft seal.
I am sure it is a spark miss cause my wideband will read rich when it is happing.
I am presst sure it is not the tune because I have tried everything on my safc to change it and nothing does.

When I log it it looks like knock but it does not happen every time.
Could it be a bad ECU? How about te coil pack? What do you guys think?

 

[absolute_DSM]

Definately could be the coil pack or transistor. Try swapping those out.

 

[selmerguy]

I went to autozone today and a coil pack is like $267. I might aswell get a COP setup for that.

 

[selmerguy]

I was looking at my coilpack and I noticed that one of the bracket bolts was gone. Then I grabbed the pack and it shook. I found the bolt on the manifold and tightened the other bolts and the problem seemed to go away. I guess the coil needs to not bounce while under boost.