When the pinion gear is climbing the ring gear lifting the front end off the ground the rear tires are not going as fast as they can forward work
One of the old Mopar drag engineers made a good statement about wheelies and how high they need to be, He said when the front tires are off the ground 1.0 inch all the cars weight is on the rear tires work up

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)