Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to set up a race car in the shop before racing [title] Weigh the vehicle. [step] Set it to the proper racing weight including all fluids such as fuel, coolant and oil (this weight is usually the minimum weight required by your home track). [title] Determine the tire stagger to be used.

Ending1: [step] To do this, weigh the vehicle before and after the first race or championship event. The amount this requires will vary based on the vehicle, but it should be between 4 and 6 liters (12. Ending2: [step] This will ensure that the tires are tightly fitted. Consider installing low-traffic car belts in your vehicles with additional features because road belts can be used to provide safety and control rather than just to guide passers-by. Ending3: [step] Install a set of tires that will give you this setting with the proper air pressure in the tires. ( don't overinflate or under inflate a tire to obtain proper stagger. Ending4: [step] The tire stagger is the most important aspect of the racing machine, because both sets of wheels drag at a time, not just the front wheels. Of course, you want to tire away the front wheels fully (which is important for road racing races).

Answer format: ending1/ending2/ending3/ending4