Ed thanks for the tips. I kinda figured it would take the 1/8th line and had ordered some. I had seen photos of the loop on top of the tank in one of Lou's posts and didn't see why it was done like that. Makes good sense once you think about it. I zoomed a photo of the engine on my screen untill the size matched the mounting template I have for it. WOW this thing is big!! Looks to be twice the size of my 1.60 FX or my 1.20 Surpass 3. I think I'm going into my third childhood..or is it my forth(can't remember anymore)