Posted by Kevin in Ohio on Friday, July 10, 2009 at 23:52:47 :
In Reply to: Speeking of slant six's,,, posted by Mr.PG on Friday, July 10, 2009 at 21:58:49 :
A long shot but I've had blown head gaskets act like that. Giving decent compression readings but giving an "incorrect" reading. Depending on the stroke, one cylinder can act worse than the other.
If it pings under load or heavy throttle, bet on a blown head gasket. Kevin