It's definently turbo, you can hear it spool up at least once in the video, and it does sound like an h22a. If he's using a "junkyard turbo kit" then he could just have a small ass turbo like a T25 or something close to that. In that case, it wouldn't be all that much faster than just the stock engine. With such a small turbo on a big engine, he'd be making more torque than hp. And mid 13's is not the worst he could be doing, he could still be doing mid 14's if he isn't getting traction (I know this for a fact). Not all turbo setups are created equal.