RE: 4 or 2 Stroke
Well, this is probably the wrong forum to say this, but if I were going to use a two stroke of that size, I'd go for a gasser instead of a glow engine. For me, there would be no way to justify the expense of the large quantities of glow fuel on any engine larger than a .91 unless I was after the sound of a 4 stroke or using a 4-stroke radial for scale appearance. Charlie