I've first started thinking about weak spark when I found the electrode side on #3 plug was wet with gas. I realize a weak coil does not pick one specific cylinder to under power. So when I noticed the gas all sorts of thoughts went flying thru my mind, the most nagging one was bad or damaged head gasket. However, there are no other indications of that which I can tell. No gas or oil leaking into the engine coolant, dipstick comes out nice and clean (with oil), no blue/white smoke out of the tail pipe whether at idle or under load, no over heating problems...nothing that usually says "blown head gasket". It will idle after warming up as if there were a dead cylinder or miss but at speed on the highway it runs smoothly with good acceleration. I'm going to do a compression test shortly to cover all bases but based on what is happening I'm not expecting low/or no compression in that cylinder. I've done that before with a 440 and it ran like serious crap at idle and/or under load. Burnt antifreeze smoke everywhere, blah blah. You could definitely tell it was not a happy motor. So anyways I'm left trying to figure out why gas is not being burned in that cylinder.
