I have not installed Fusonics with the 2614 receiver, but I did use them with the 2702. I know other members here have installed the Fusonics with the 2614 and Devo 7 tx--so it is possible once you know the proper settings.
You will just have to fiddle around with the Reverse settings and switching the positions of the servos in the receiver. That is to say, you may have to switch the PIT and AIL servos from what is shown in the manual. You should also be able to mount the ELEV servo on either side of the frame, should the need arise. I wish I could tell you exactly what to do, but I cannot. When I switched from Fusonics to Hitec servos, I had to repeat this whole process. But now it's all working great. You'll get there, too.