A Godlike Sith Naruto in Star Wars fanfiction would bring a whole new dynamic. His ninja training and skills could be translated into Sith training. He might be able to combine his ninja stealth with the Sith's ability to hide in the Force. Also, his ability to form bonds with others, which was important in Naruto, could be warped into a Sith's way of creating loyal followers or apprentices. His unique look, with his orange jumpsuit perhaps modified into Sith robes, would also make him stand out in the Star Wars universe.
Well, a Godlike Sith Naruto would be a very interesting addition. He could use his Naruto - like abilities such as shadow clones and powerful jutsus in a Sith - like way. His speed and agility from Naruto's world could make him a formidable Sith. For example, he might use shadow clones to deceive his enemies in lightsaber duels, just like he would in battles in the Naruto universe.