I have the stock ti LSD (I forget the ratio) but my car ran at 3500 rpm at arount 75 mph. I never downshifted with on the highway to pass.
You can have the cams if you want them. I have an entire S52 minus the head if you need any other parts. The engine had spun bearings FYI. Just let me know if I can help with anything else.
If you want take a look at my swap thread. I need to update it more info and pics but I just snapped my secondary timing chain so I'm a little busy with the rebuild.
Oh I also have a Non vanso M50 with about 75k on it if anyone wants it. It needs the front timing case and sensors and a manifold.
Good luck with the swap!!!