If for some reason you would EVER want to performance the old dutchie, probably compelled by some omnipotent power, I would recommend an MLM as it one of the few options and either a 13.13 or an MLM intake and a bigger carb. Beware the dutch woes. Or you could take out one of the restrictor plates inside the pipe and probably go somewhere around 28. Possibly do what I did with my stocker that was already running on the richer side. I pulled off the entire chamber of the pipe and GoT mYsElF a HaRlEy. SOund dope and pulls to 30mph with me on it. But in all honesty, have some fun, you got yourself a winner.