Where should I be trying to get my center of gravity for a road course racer. I have a mail in race coming up and don't have a road course to test on. So i am just looking for some tips for center of gravity. Should it be centered in the length of the car or should it be centered between the wheels? I am sure each car is different but I need some general rules of thumb for adding weight to a downhill racer that will be used on a road course. Thanks in advance for helping a newb out.