I bought my 08 Viper in August, 2008. It's a Snake Skin Green. Bought from Bill Pemberton at Woodhouse in Nebraska. I never had any chance to go to the Drag Races until May 30th, 2009 at Fontana, California.
I was quite surprised that this car was quite quick. After a few runs, I made myself comfortable with this car and finally I got the best time. My best time was 11.893 and trap speed was 127.08MPH. My car is BONE stock. I wanted to keep it that way until I run the 1/4 Mile. I was quite surprised that I broke the 12s with the stock tires (with stock everything)!!!
FYI, my 588WHP Z06 with Hoosiers (345/30-19) made 11.3 at 130MPH a couple of months ago and my 911 Turbo (bone-stock with Chrono Pack) made 12.4 at 116MPH on the same track (different dates, though). (Of course, on both these cars, I didn't really do a good job because I only ran 3 times each when I ran 9 times on my Viper).
Nevertheless, this Viper is really something considering the fact that the Steet tires (PS2) are not really sticky enough to unleash all 600HP (at the crank).
After this event, I changed my rear gears to 4.10. (Some people told me 4.10 would be too short, but it's wrong. It's the MOST adequate gear ratio for the 8.4 engine, I think. FYI, the 8.4 puts LESS torque than 8.3 up to about 2500RPMs. Then after 2500 RPMs all the way to 6000 it makes a LOT more power. I think that's why 8.4 is quite good with 4.10 gear when 8.3 is not. My friend went through a lot of studies in his 8.3 and he found that for his car, it was the best for 3.55).
Anyways, when I do the intake, exhaust and ECU and put about 590WHP and when I get the 18 inch BFG Drag Radials, I don't think I would have any problems getting the time to low 10s.
I think I like my Viper. At first, I really didn't like it because I bought it right after I sold the M6. Compared to M6, which is pretty smooth and sophisticated, Viper was quite cheapy but after my run at Fontana and after I changed to 4.10 Gears, the weaknesses were pretty much forgettable! ;-) (Weakness: Too much noise and vibration; Too much squeaks and rattles on the dashboard).