&quot;quote
Could just be sticky valves. I've been having more trouble with that problem as the quality of gas seems to head down.

You could take the valve cover off and check the valve lash, and tap the valves with a hammer to make sure they are moving properly. They don't have to stay open much to make you lose compression.&quot;
Chris Losey

I think sticky valves might be the problem I am having with this 1555 Gas I just bought. What do you suggest to free them up? I adjusted the valves the other day and it seemed the oil getting to the valve train could have been a little more. I have about 28 psi oil pressure at an idle and 32 psi half throttle.
Steve