If the boost is set to reset to infinite after the kickoff, then there is a time window that you can reset the shot after touch, and it will go back to infinite before your next kickoff. Can be recreated by resetting immediately touching the ball. Your car will be placed in the kickoff position, and then the boost will go to infinite and still time the next kickoff with unlimited boost.
If the boost is set to reset to infinite after the kickoff, then there is a time window that you can reset the shot after touch, and it will go back to infinite before your next kickoff. Can be recreated by resetting immediately touching the ball. Your car will be placed in the kickoff position, and then the boost will go to infinite and still time the next kickoff with unlimited boost.