I have a 1991 4Runner with a 22RE. I bought it because it had a bad timing chain and 2 flat lobes on the cam. When the engine runs it makes a loud "my rocker arms are WAY out of adjustment" noise. I replaced the timing chain and put in a low mile cam and rocker arm assembly, and the noise still persists. I lashed the valves several times, properly, trying tighter and more loose. My only thought is that those 2 valves are sticking, but I have never gotten into them. Please help.