[Blackcat]

I've built quite a few Pontiac engines over the years and have had 2 bad oil pumps in that time.
One failed after 4 months. Another had such low oil pressure I tore the engine apart to check and the clearences in the pump were junk. Put in another one and the engine had great pressure.
One was a sealed power and the other a Mellings.
So two out of 50 engines is not a good number.