I’ll be testing in the next couple of weeks. Lots of people have done the swap on there Turbobuicks. I have no complaints about my 2004r but I wanted to try something different. Went 9.90s with it having valve float. Built right there a good choice, but there expensive to be done right. For $3000 I have a 1200+hp rated 4l80e, the 200 would probably cost around $5500+ with the way things are now. I like the fact I can set my own shift points, I went with a Jake’s d3 valve body so I have a transbrake with auto shifting and 1 or 2nd gear leave. Go on Facebook there’s a lot more talk about the 4l80e swap.