I have a 29% edge 540 with a FPE 3.2 (52cc) on it and i did not put the stack on it for the same reason you don't want to put it on. I have been flying it for a while now with out the stack and it works perfect. I have never had a dead stick or anything bad happen form not running the stack. You will have a cowl on the plane and that will help the carb. I think you will be fine to fly the plane with out the stack, you just need to get the motor running a little rich the first flight or two then lean it down a little at a time.


smallplanes