Hopefully you guys are right. I have a buddy that's going to come over and help me do a compression test. Not sure when he'll have time, hopefully soon. He's got a few projects going on as well. As far as being humid, I'd think that after running/driving for 30-40 minutes, that the condensation would burn off and the "steam" would disappear.
Time is my biggest setback. My son will be 3 in April, and we have a 7 week old daughter now. So, by the time I get home, Mama is ready to hand over the kids and take a break... which is perfectly fine with me. She needs the break. The downside of that is, my time to spend on the truck(s) gets shoved to the back burner.
I know how it goes with fixing one thing, then another - Our '73 F100, I replaced the water pump on it, then figured out the heater core was leaking. So, it's unhooked for now until I it can be replaced.
I do have a temperature gun, not exactly sure if it's IR, but I have used it around the house to check the a/c temps at the vents and that sort of thing. Can I just use that and point it at each plug area, or different points around the engine to see what the temperature is?