[andy669]

How old are your tires? I start to see a difference in the way mine hook after about 10 passes. Is your car stripped down, or does it have all the sound deadner, interior, etc..?

For now, I'd try bolting 100 lbs in your rear bumper. I hate to add weight to fix a problem, but it would be fairly cheap and you might be able to learn something. In the meantime, save up for a set of replacement uppers and rear shocks.

Andy