Flame Licker or Vacuum Engine Giveaway, Preview

Perhaps a little known and novel form of engine. An interesting action. https://en.wikipedia.org/wiki/Vacuum_... Banggood are supplying 2 of these engines for a July giveaway. Entry is free. More details at myfordboy.blogspot.com Details will be given on a further video featuring this engine in July. https://www.banggood.com/custlink/GD3...