Quote: I had the same problem with the 440 in my truck. Didn't seem to notice when driving it, but at an idle, it shook pretty bad. Had a burnt exhaust valve and no compression in one cylinder. What were the rest of your cylinders running for compression? Normally you don't want to run more than 10 percent difference.
I believe he said the others were running somewhere around 120-130 psi. I'm not too sure. Honestly, I don't know too much about engines or how to troubleshoot them, but I'll be done with my next school quarter in 2 weeks and may have some time to fiddle around with it during my Christmas break.
