He can track Raikage, and he should be able to block his assault since he's physically just as fast as KCM Naruto, but with better reactions. (Not including Shunshin of course) But is that enough for him to counteract a blitz with his own attack? Or will he be forced to block? Cause if he can only block against Ay, he'd die.
1. Ay can follow up with another attack.
2. Ay might even injure him with his punch considering KCM Naruto said it felt heavy, and he's far more durable than Sasuke.
If KCM Naruto regular movement speed+better reactions is enough for him to react with an attack (basically if KCM Naruto can react to V2 Ay's Shunshin with an attack of his own that doesn't include Shunshin) then Sasuke would kill him with Enton Kagustuchi. And since I don't think that Ay is fast enough to blitz KCM Naruto in the same fashion SM Madara blitzed SM Naruto, I'll go with Sasuke, since he is pretty much equal with KCM Naruto in regular movement and combat speed, but with superior reaction speed. (JJ speed tracking Sasuke>>Initial EMS Sasuke=KCM Naruto in reaction speed)