Board Thread:Versus Debates/@comment-25122992-20161209152835/@comment-3965545-20161226190024

I believe Sasuke was referring to his base state. Naruto made a "dimension filling" amount of clones against Kaguya in the ice dimension with SPSM.. surely more than a 1000 but was definitely not dimension filling, though this page doesn't mention the amount it says it is his strongest Taijutsu in his arsenal.

http://naruto.wikia.com/wiki/Naruto_Region_Combo