nytrdr24
+1y
There is a slight amount of play in the rocker arm placement as pont & justin have said, but with the lick being hard enough to bend the dizzy & break the teeth on it & cam gears, it may have been hard enough to throw the lateral movement of the cam out of spec, which might be adding to the issue with the rocker arm moving on you...
The new cam you have probably isn't matched to that rockerarm assembly, & with the chance that the lateral movement of the cam being out of spec, it wouldn't be a bad idea
to see if the cam moves when you initially install it, to do this, set the cam in position, set the rocker arm assembly on the cam, and hand tighten (snug tight with a wrench, but not to the rated torque specs) the bolts in the appropriate sequence. If the cam moves (rotates) while your are tightening the assembly down you will need to carry it & have the surfaces where the cam rest line honed to match the runout of the cam. If this isn't done, you will have excessive wear on the mains & lobes of the cam, and run the possibility of too much or too little valve spring compression which can have there own set of adverse affects.