Tom, I'm pretty sure I already have one of these engines in my Edge 540T V2 but I got mine from BCMA Engines. Looking at the pics of these though they have to be the same engine. Even the mufflers are identical. Adam does use a different EI and carb though. I prefer your carb due to the fact that it has the servo arms installed. We going to see a price war on these? His are $425.00.