Single or Dual Pattern Cam

Imagine "where" on the cam core the lobe is. A good cam grinder can put that lobe anywhere on that core he wants it. In other words, he can move the lobe so that, even though he's ground some off, it will lift the valve more than it did before. Of course, a lot of times an engine will require longer pushrods.
Wait a Minute... so are you saying, when the Re Grinding occurs, ya can
Yes. Imagine the cam grinder MOVING the whole lobe on the core so the peak of the lobe is higher than it was. Of course that also means the base circle will be "lower" necessitating longer pushrods. Get it?
DIG IT, MY BROTHER!!!!! Thank You! That clears up alot! Hence, my reading about many members needing O/S push rods.... Cam Bumps lifters, lifters push pushrods, pushrods rock the rockers, rockers roll ( not in my case, lol) the valves, the valves open, and the Mopar Survives, to run again! So,basically, the guys like Ken save on the cores... that's Recycling right There! Those commies, whoops "Green folks" should be Proud of us! Lol! Are they still needed to be "broke in" after the grind? As the old location of the lifters ain't the same? Sorry to be a HemmaRoid