ohdaho, it sounds like you just need the suspension sag set for your weight. if you can be at the track early in the day, ask around at the tech shed for them to help you with that, and they will. if you have any fancy tools for your suspension, bring it with you. if the tech shed people can't help, we'll help you or find someone else who can. obviously, if you can get it done before the track day, that'll be less stress for you, but don't go paying a bunch of money for it... it shouldn't cost more than $50-100 to get the suspension sag set. i think at my first track day at Mid ohio, department of suspension did it for $50.