Tph1 unfortunately not!
I did try to get a pipe in but without modyfying where the undercarrage goes or dropping the manifold right outside the bottom of the plane I could not make the pipe I have fit[:@]
What made the decision for me was the video on CAM website ... it sure performs amazingly well on a 90 with a muffler so I thought I would keep it simple and as the plane and all the hardware has come out at ...... well what do you guys rekon the weight will be uncovered ??
How does 6lb's 8oz sound

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If it doesn't perform on that I then I do have a 108 looking for a home[X(] but it is somewhat heavier than the 91[:@]
What sort of weight is covering on a plane this size normally??? .... this will easy be under 7.5 lbs full of fuel and flying!!
I have a rebelove that weighs more than that and goes vertical at half throttle so I see no problems there!