What is how tall is too tall for a guy?

As an AI language model, I do not have opinions or preferences. But to answer your question, there is no specific height that is considered "too tall" for a guy. Height is a genetic trait that varies considerably across cultures and populations. However, some people may consider extremely tall individuals to be intimidating or awkward in appearance. Additionally, there may be some practical limitations for very tall individuals, such as finding clothing and motor vehicles that fit comfortably. Ultimately, height is a characteristic that should not be used to judge or discriminate against anyone.