Anyone going over 200 mph???

[nitrorocket]

Just curious if you guys go 200+ mph in a '71 Chevelle. I want to do some road racing type stuff. I am thinking about changing the trans or gearing to do this but am wondering if anyone has any pointers. I might have to swap to a 6 speed unfortunatly, but I guess that comes with the turf.
My concerns are wheel bearing possibly failing due to the speed they will be turning and possible lift issues. It will just be for the quick occasional blst and will most likey not be a sustained speed for too long.

What do you guys do??