Seat pressure and break in. Hyd flat tappets

I forget what the open pressure was. I guess it's the ramp that made me nervous. I worry too much I guess. Hensley racing built me a bad *** 360 in the mid 90's. .509 cam etc. I was 18 at the time and saved my pennies for that engine, which still runs strong to this day. Anyway... I cranked and cranked and cranked. Finally got it to crank, had a water pump gasket leaking. Shut it down. No telling what oil I used, probably mobil1 at the time. Engine has a lot of passes and miles for a toy car not driven. I guess ignorance is really bliss.