Naruto and Sasuke used the strongest attacks they had available at the time. Neither one of the them could have done more than what they were capable of doing during the time they fought. In the end Naruto= Sasuke thats why got their arms blown off and that's why Naruto even said if they fought again theyd both die.This. I didn't even see Naruto display everything he was capable of doing against Sasuke.
Naruto's nerf>>>>Sasuke's nerf.