so I just jumped into it with both feet and killed several birds with one stone.
Well dang, sounds like it's fit as a fiddle now, I bet it spins like a top

...
-Mike
took it out this morning for a spin to the gas station and there's a definite difference in power and performance. No more popping, stumbling, missing, or any other odd behaviors like before. It just runs smooth as silk at any speed. I'm not sure exactly what fixed it, probably a combination of several things. I did the desmog because I had the carbs out and it was really easy to do at that point. I didn't want to tear it down again to do it later if one of the pair valves failed. It was definitely worth the time and trouble.
I know I'm repeating what's already been said on here, but if you experience a hydrolock, CHANGE YOUR OIL. Mine had gasoline in it and it was very thin. Had I run the engine, would have experience major engine damage.