got my truck running but almost had a huge problem rocker popped off push rod

[buddylj1990]

yesterday got my truck running it was running good didn't have no valve rattle but got up today to drive and tryed starting it didn't sound right so got it running and it was sippin tappin so shut it off pulled valve cover off 4 rockers were really loose two on driver side and 2 on passenger side one on the passenger side was so loose it had jumped off push rod and one on the driver side was so loose it wasn't touching push rod spring so i ajust them and now it runs real good on all eight cylinders