What Happened!!!!
 

i dont know what happened but here is the story, i have a 1999 mustang cobra convertible with 18inch rims, an h-pipe, a rollbar, and a passenger. A single driver in a stock 2000 camaro z28 coupe pulls up at a red light. he said to punch it so i did. I know that i have ten more hp than he does, so i gladly took the race, we were neck and neck in first, but when we switched to second, he took off, won by about half a car, to my understanding, cobra's are supposed to be faster than shitty z28's, what happened, is the rims?? passenger?? or just a slow car????? here is a link if you wanna see my car, please give me your input. http://webpages.eng.wayne.edu/~aj3727/myride.html

I hope you dont take offense to this man, but there are a few things that factor in.

1. Some of the 99 Cobra's had HP issues. And there is also a Rating controversy going on.
2. Drivers ability. Dont take it as a knock against ya man, but he might of been a real good driver.
3. Wieght, your car in a Vert (Obviously) which is heavier than a coupe.

I don't want to bust your balls either, but LS1's are just plain faster. They have a much more usable power curve, and most lay down 290-300rwhp in stock form, making the factory rating on the conservative side. Your car maybe "rated" at 10 more hp, but I would think its a safe bet that his makes more power. And as stated above, your car is also heavier too, which doesn't help either.