I have an LS1 with a Maggie in my 944. I went to Wanna-go-fast 1/2 mile for a few years with it & ran 140 + or so both visits.
The 1st year I went that speed put me in the top 10. The second year? Bottom ten!
People have stepped it up.
https://www.youtube.com/watch?v=fe-9vbcbrK8