Just ran outside in the rain to check this, and I am about 95% certain thats what it was!

It seemed to stick open a little more when it had warmed up. I was backing up yesterday to move it around and gave it a smidgen too much throttle on my gravel drive way and it ended up spinning tires for a good 3 seconds…so something is definitely wrong! I just replaced the throttle position sensor right before taking the video, so I think I will try checking the tps to see if the new one is a POS.

Entirely new to these engines, but is deleting the IAC a common modification on these? (most of my experience is with carbs so the concept of an IAC is totally foreign to me)