A couple of weeks ago the cam wiped out in my truck. The stupid lifter yoke broke a tab and allowed the lifter turn sideways on the cam. I chose to go with the crower stage 1 cam p/n 35417. It is not listed in their print catalog. You can get the specs online for it. DJ at Crower was a big help. I also purchased the spring kit listed for the truck. The spring kit listed will not work. Luckily I live in San Diego so I drove to their location with one of my heads and a stock spring. They were perplexed when they saw the size difference. One of their techs named Guy (spring expert) worked with me for a little over an hour to find a spring that would work. Outstanding service! Here is what we came up with a set of tungsten p/n 68314 and retainers p/n87044. There is a damper with this spring and you need put it at the bottom of spring so that the spring is tight on the seat. I'll let you all know how the build goes. hoping for some significant gains. Along with the cam I'm doing the fastman tb, headers, hemi fever tune. I expect the massive porting polishing I did will really open this beast up with the cam. Feel free to hit me up with any questions.