Thanks for the replies guys! I'll try to answer a few of the questions, and is it worth trying to post a data log of the car driving? I can do that, just have to figure out how to upload the file.
First, to address why I had it rich at part throttle, it wasn't intentional but I'm very new to EFI tuning so I stuck to most of the idle/part throttle presets in the fitch which I hear tend to be rich. With the Fitech you are setting target AFR's at given points to make the curve but those points aren't adjustable. For example, to set my target AFR at 8PSI at 6000rpm's I have to set a target AFR for no boost at 6000rpm's and for 11.6 PSI at 6000rpm's in such a way that I meet my desired AFR at 8PSI. It takes a little trial and error (or graphing it out, which is beyond my skillset lol). This might better explain what I'm saying:
http://fitechefi.com/faq/afr-targets/I am also running into a little bit of a lean tip in with aggressive throttle input, which causes my AFRs to overcorrect rich (into the 10.9 range) briefly before getting back to targets. This seems to be a common problem and I'm working on fixing it through the tune.
I'm not surprised it's running rich though, I knew I'd have to lean everything out a bit. It's not terrible to the point where it's loading up or anything, it actually feels pretty good part throttle. I don't THINK it's compensating for a misfire, although the Fitech runs off a wideband on the opposite bank and I need to check those plugs out in a few minutes.
I'll check the ignition wire, they are new MSD's but the MSD's honestly are garbage these days. so i'll OHM it and maybe swap it out to another cyl in case the clip opened up too much or something.
IT looks like the plug is firing, the ground strap is white and the base ring has some fuel soot on it. It just looks way cleaner than all the others. I have noticed the idle has been a bit rough, but part throttle feels great and getting into boost felt awesome without a hiccup or a stumble, if it was misfiring it wasn't anything noticeable to me.
I want to take the car to a professional tuner and get it on the dyno, because it's taking me forever to try to tune out these lean tip in issues and it's impossible around here to do any full throttle runs safely on the street. Nearest drag track is 3 hours away.
My main concern is I don't want to go there with a mechanical issue and pay for dyno time only to find out something needs to be fixed first. I guess the best place to check right now is that ignition wire, and pull the other bank to see what those are looking like.