Brent, how many times have I written that I don't understand why everybody doesn't use a solid flat tappet cam? Yes, you have to break it in, but once you're past that and you get a thousand miles on it then it's going to last longer than you are. With a high quality roller rocker set-up you lash it once a year... if that. Just use a good ZDDP
oil. C'mon, how hard is that? And you get the benefit of that wonderful flat tappet sound and the hi-revs. Anybody that puts a hydraulic cam in an FE-equipped Cobra is just a big, fat puss_.