So I had a second tuning session with Vlad. For this session I drained as much e85 out as I could and filled it with 4gal of pump. And I also installed my flex sensor. These 2150 injectors on pump, combined with no idle motor what-so-ever, was tricky to get to idle nicely, but he did it. Doesn't idle as nice on pump, but not bad, and doesn't really matter anyway since it'll have e85 in it 99.999% of the time.
So the car starts and idles better than ever. So I started buttoning things up and got the car on the ground off jack-stands for the first time in over a year. Pulled it out of the garage. First time she's seen daylight since 2015 Fall Proving Grounds! She's dirty but not too worried about that yet.
I drove it just around my little neighborhood area, and everything appears to be working perfectly! I took a couple logs for Vlad (low/med throttle stuff). He'll update my tune to reflect, and I think we'll be doing a few rounds of back n forth until we're happy.
Definitely getting the itch for spring now!