When he saved Sakura from poisoned kunai. He was faster than Kakashi.
Oh right, but wasn't Kakashi suffering from the effect of overusing his Sharingan there. I remember him grasping his eye and falling over from fatigue after using Kamui to warp away Sasuke's Susanoo Arrow. Naruto was fast there but we don't really know if f that was foot speed or a shushin.
Not saying Naruto isn't fast but from what I gathered throughout the manga Sasuke is the fast one and Naruto is the strong one.
Not sure why people have such a hard time accepting this. In this rare case, I don't see Sasuke fans claiming Sasuke is physically stronger than Naruto. Sasuke and Naruto are two sides with f the same coin.
Naruto is stronger than Sasuke
Sasuke is faster than Naruto
That doesn't make either of them weaker than the other.