Not yet. I have a 3.23 Sure Grip sitting in the garage. Need to order new 30 spline axels and a yoke and then it's going in. I have a feeling though that the 3.23s will slow me down in the 1/8th.
What rpm through the traps? It may or may not, be interesting to see how it reacts. It might help out on the start line. I have notices on a lot of turbo cars it didn't seem to make much difference, but most of that was in the 1/4 mile.