Runs like a dream as far as u know. lol. if u want a good out of the mail tune, look more towards: INTENSE, DHP, Will at Overkill Performance. I myself have a ZZP PCM but am doing a whole different tune with it because i have HPTuners. If your experienced with tuning go that route. But if not look at those other companies for mail order tunes. Trust me people will definetly be chiming in after they read u have a ZZP PCM. I can already fore-see Bluegtp91 posting after he reads your post. lol and many at that. Do yourself a favor and get a different PCM and slap them rockers and headers on and call it a day. if u dont mind me askin what kind of hearders and rockers u goin with?
I'm sorry. But I disagree to no end about telling some one to look more at a intense pcm. I wouldn't touch it if I had to. IMO any Mail order tune is about a pile of junk. But your going to hear somthing different from everyone. So when it really come's down to it. My thought's really dont mean much of anything. If you where looking for a starting point and your going to alter the base tune with your own tuning and a wide band then good deal. But that's about the only way I'd even think of picking up a reprogramed pcm.

You really need to get your car on a scanner and see what's going on. I wouldnt be shocked if it's a fueling issue one bit. Could be a fuel pump going south. I've seen a couple nice builds come apart from fuel pump's on there way out. Might be a injector taking a crap, Could be spark blow out, Coil Pack, ect, ect.. What's your fuel pressuer doing at WOT when the misses start? No point in throwing part's at the car intill you know you problem. That'd be about as smart as pissing into the wind with your mouth open.