That is definitely one reason that I love roller cams is no more fear of failure at break in. And if I were starting from scratch it would be roller all the way. And that's what I have done in the past. But in my current case it appears the $ to hp gain etc. won't be worth the extra 1400 cost.
If I ever get my Dart out of paint jail, I'll let you know how my mushroom cam is working. Very similar rates of lift/duration to a moderate roller (mine after minimal regrinding to restore lobe taper is 272@.050, .652 gross lift) without the "extra 1400" for valvetrain
Although I was extremely nervous breaking it in! Outer springs only, good oil, lots of zinc. It's a trade off for sure...
