LOL... Yep, if you jab the throttle in any gear on the Viper with the front wheels slightly turned, it will turn around and bite you in the asp. Throttle technique has to be smooth to bring the torque on evenly to the wheels. The Quaife LSD improves even torque distribution to the wheels. Suspension tuning and proper alignment are also factors. Unlike a lot of cars, the Viper is one that takes 100% of your attention on the road. The second you don't pay attention, it will rear up and show its fangs.
The 350 is incredibly stable at over 150, so much so that it's boring. The Viper is not as stable -- it will go over 200 mph, but at that speed, it's a big handful of car even for seasoned drivers. The reason the ACR has that big wing is the car needs incredible rear downforce -- the wing generates up to 1,200 pounds of downforce to give it stability. The coupe has a different aero design on the rear than the roadster, so the roadster is the least stable of the three Viper models at high speeds.
Fourth gear in the Viper is 1:1 (the gear you use for your dyno numbers) -- 5th and 6th gears are "overdrives".
If you're into shredding tires, one of the top drift drivers in the world has won championships driving Vipers -- they go sideways so well.