Like a lot of the forum members, as a younger man, I did a lot of things with my cars and bikes. My '99 Ultra is just for riding. The bike had the V&H on it when I bought it. About a year ago, when I determined that my cam tensioners were toast, I elected to do the roller chain update to go with the hydraulic tensioners. Since I couldn't use my old cams, I went with a set of Andrews 26N's which according to the manufacturer, are designed for two up riding. To allow for more fuel, I added a TFI unit and a Big Sucker air cleaner (to go along with the cams change and the V&H pipes). This setup gives a lot of low end torque and some added HP. It comes on at about 1800 and is done by 4000. Gas milage is about the same (45mpg) and the increased low end performance IMO was worth it. Of course, the other rationale on my part was the need to update the tensioners. Hope this helps...