Need help for 1st Cam break in :

The two above posts are spot on. The only other thing I would add is having a fire extinguisher nearby. Broke in a
Clay Smith solid lifter cam, slightly bigger than the Formula "S" cam, ran it for 30 minutes just like 318willrun described. Didn't need the fire extinguisher, thank God! But I planned for worst scenario. The cam lube I used was provided by Clay Smith. We used to use HRL back in the day, not sure they're around anymore. Rotella oil plus RedLine Engine Oil Additive for me, 30 minutes, all good!