Traction Problem!
Trying to hook up a 12 second or faster car on the street is very difficult. The street is dirty and not prepped. I hook fine at the track but if I take my car out on the county highway next to my house I can't go full throttle until the top of second gear and then I have to be careful shifting into high gear. I do not believe there is anything wrong with your car it is just the street surface.
Chuck