Just trying to help the gentleman out so he doesn't end up doing a lot of work reinventing the wheel here. My gas conversions have all run at least 40 degs hotter and some much more than that. (None of my glow to gas conversions run less than roughly 300 degs) An ABC doesn't take too kindly to this type of treatment. One of my gasser conversions runs great but does so around 350 degs and at those temps the ABC will not seal up properly and the superheated gases leaking down beside the piston WILL burn away anything remotely resembling lubrication and in short order our little test engine eats itself. Been there done that and again I was just trying to help out so we don't keep reinventing the wheel and since it is still a free country, for the time being, he is most welcome to experiment till his heart's content.

On a side note, the SuperTigre engines have a bit more cooling fins and they are longer offering more surface area with which to dissipate heat and mine at least seem to run slightly cooler because of that.