So...
Unbolted the TPS again, realigned and rebolted.
Removed IAC, cleaned with TB cleaner, reinstalled.
Checked all vacuum lines a third time.
Started it up, idled out into driveway, sitting in place shifted between N, R, and 1 repeatedly, revved to all different RPMs while in gear and not.
Vacuum showed 13-20 depending on engine speed and held steady when engine speed was constant. Stumped on brakes hard a couple times to rule out bad booster.
Car does have a very noticeable stumble while tapping the throttle from an idle. Falls on its face when you floor it. Cap and rotor look shitty, will clean them up. Plugs look good, same for wires.
Car idles high, IMO, about 1000-1250, but did not experience WOT issue.
Think the TPS could cause the stumble, high idle, etc?
Thanks.