Just an update. The car is running pretty well now, but the valves and pistons still aren't what I'd consider clean. Actually, I haven't pulled the plugs since the molasoak, so maybe the pistons are clean now. I'm going to run FP for the rest of this oil change, then do a molasoak right before the oil change.
The first time I did it on level ground, but since my pistons are at a slant, I was thinking I'd put my car up on a single ramp to get better distribution of the LC next time.
Right after I did the molasoak I had some nasty ringing about a minute after starting up the car, like a piston was rattling around inside the cylinder, but it went away in a few seconds, so I have to assume it was the rings reseating or a carbon chunk coming loose and bouncing around?
-Ian