Lads, Recently picked up a car that had been dormant for alitte over a year. Engine is 440. Was said to have been a strong runner. I started the process of waking her up. After replacing the oil, filter and priming the engine, I had good oil pressure but noticed nothing coming through passenger rockers. Any of them. I thought maybe upon cranking or start up once the holes lined up it would come through. I fired her up and after waiting a few seconds and oil rushed through the drivers side and nothing through passenger. Decided to shut the motor down. What would y’all opinions towards my next course of action or things I should check? I have not adjusted or had the rocker arms off but I cannot speak for the previous owner. Does look like the heads were gone through In the somewhat recent past.