[NRigs]

Update: Took everything off the top of the engine to inspect the rubber hose coming from the valve cover. It was slightly cracked and brittle at one end of the hose. No oil was in the hose. I put everything back together and made sure the hose wouldn't be pinched or anything. After I did this, it felt like there was more vacuum at the vacuum has at the exhaust valve. The exhaust valve was able to close when I pressed the buttons on the valve controller but it still wouldn't open. I manually opened and close the valve a bunch of times and it was eventually able to open and close via the valve controller. Works like a charm now.