hey guys im new to the forum and i was looking for some opinions...im looking at a 94 z28 non t-tops and automatic...the odometer has 68k miles on it and the outside is almost mint(no dents or scratches)...he has an slp loudmouth exhaust and bbk headers and a k&n cold air intake..he also has 17" amer racing torque thrust 2's on it and the stock rims too...he is asking 6k for it....my question to you guys i guess is if i should keep looking or if this is a good deal...also how can you tell if the rear end on these things are good while your driving?? any signs of a bad car i should look for?? thanks ed.