So I went Back and read the post where Bert was seeing this differential (remarkably similar) and I think I missed on the possible cause - I assumed cylinder being too hot but I think #2 is not following the temp up.. #1 does have the lower compression but #2 seems to not be following on temperature and this is what Bert found when he had a carboned up Exhaust valve.. I was troubleshooting #1 side but will go back and have a look at #2...