Hello, I'm using this Comp Cams hydraulic roller in my street low deck 470. http://www.compcams.com/Company/CC/cam-specs/Details.aspx?csid=1443&sb=2 Nice cam, tons of torque and idles nice. If I had to do it over again. I would of went with the next step up for a 470. But it's a great street cam. Here's what it sounds like at idle. http://www.youtube.com/watch?v=Rr70kGtPmPA Good Luck