RE: gas fuel with glo plug no ignition
I don't know thunderbolt plug's but a OS #3 is supposed to be their hottest plug.
I was concerned that the adapter held the plug to high and reduced compression a little but it sounds like it about the same a spark plug.
Gas has less BTU's then alcohol, less BTU's = less power.
With out the battery to keep the plug hot I don't think it will work.