If we're talking full powered Naruto vs his dad alive, Naruto can win. With BM, KM, and SM, him and his clones can be everywhere Minato's kunais are. With only 1 Minato and multiple fast clones with sensing skills, Naruto can land a blow on his dad. It would be high diff though. Those near instant reflexes Minato has makes him the hardest person to hit but I think Naruto is one of few people who could catch Minato off guard with his speed. He's also been shown to have clones with tremendous speed so no doubt Minato will have a tough time disposing off all of Naruto's clones.