Well Scotty, I'm glad I listened to you on this. Throttle body was indeed warped, but not as much as I thought it was! Verified with smoke machine and she's all good now! (and I don't have to pay for a tune!)
Best news of all though, I was still uneasy about the fuel pressure, so I picked up a acdelco one from the junkyard, popped it on, and wala! Fuel pressure around 48psi key on engine off and 57psi with engine running and vacuum removed!! Now my fuel trims are right around zero in park both ltft and stft! I go slightly positive (+2% on acceleration and -.75% on deceleration!!)
I think the coolest thing about this is that I found out some new stuff. So running a 10psi fuel pressure increase will boost your fuel trims by about -10%ltft, and that an overbored engine doesn't need a tune if run stock, and that a overbored engine doesn't affect fuel trims when run stock! Kind of cool stuff!
Anyways, now on to my pesky coolant leak....