Tank location makes a big difference too... in the '24, our tank sits square over the rear axle. Fuel weight goes solely on that rear axle. As a result, the car is actually very sensitive to fuel load, once we get it critically tuned. We'll typically burn 2.5 gal of fuel in a race at our home track; over those 14 miles, the car will go from a mild push to a mild loose condition. Bigger races exaggerate the condition, of course.

Then you get to decide how you wish to set the car up - for the beginning or the end of the race?