If you have tread on the front tires, pull around the water, and BACK in if you are going to do a water burn out. Now I have never used a line lock or used the brakes in the water. If you are in the water, do a 2nd gear burn out and as the car moves out of the water, stay in it until the good traction starts to pull the RPM down. Why 2nd gear, the wheel speed is much faster, I, if I were drag racing any more and with the Viper, might even try 3rd gear for even faster wheel speed.
Later,