SunlitComet
OBS Jedi-Do Good
It only puffs for a second.
Ch@d
If you plugs stay clean and it does not show up any other way I would to leave it for now unless you really want to get into with testing. Take picture of plugs for comparison and if it gets worse or at about thousand mile or so remove the plugs and reinspect. If you want to do some serious testing you can do cooling system pressure, combustion and leak down tests to narrow it down.