Yes, Comp hydro roller. In the one article you have someone saying that stock lifters have .120 travel and a suggestion that cheap lifters have had upwards .180 well ,wrong A $400+ set of Comps has .198. I trust in my experience/knowledge (and a few old timer friends that have been there ,done that a thousand times, Thanks guys!) and believe very little what I read on the internet sadly because of all the b.s. you get mainly for marketing purposes. I'd rather hear it from experience than a Hot Rod article