When you pull the valve covers off, I would double check to make sure there isn't anything blocking the oil passages in the heads. Sometimes if it's been sitting a while, the old oil could kinda gunked those up and make the oilpan build up back-pressure. I had it happen on an old 350. I tried the PCV valve and then had to clean the heads really good.
When you pull the valve covers off, I would double check to make sure there isn't anything blocking the oil passages in the heads. Sometimes if it's been sitting a while, the old oil could kinda gunked those up and make the oilpan build up back-pressure. I had it happen on an old 350. I tried the PCV valve and then had to clean the heads really good.
Sorry, didn't mean to repeat that twice!
