Hopefully the car will go straight the way it is already set up. My car is 150 lbs heavier on the left front than the right rear. Do I care? No. All I care about is if it goes straight when I let go of the button. And it does. I have some buddies that think you are supposed to put it on scales and crank the preload into it until it has the same weight on the rear wheels. I don't know why. There are experts somewhere who could take your wheel weights and horsepower and set the car preload before you go to the track but they don't live next door to you, so you have to learn this yourself. Set your 4-link heim joints up where the left hand thread joints are in the front. You didn't say how much horsepower you have, lets say you have 800. If you set it up with no preload it will probably drift to the right after the launch. Put a half a flat of preload in it and make another hit. Keep working it until it goes straight, then life will be good.