Sure there's a way. you will need one of the ez connectorson the carb throttle arm. set this up without the servo connected at first. put the pushrod in the fuse bend a ninety degree angle when it comes out the front. line it up with the ez connector on the throttle arm. Now here's the important part. moving the pushrod from inside the fuselage work the throttle from full closed to full open. make sure the complete travel is smooth and the carb really closes all the way as long as opens all the way. you may or may not have to change the angle a little bit but it is possible. then when that is all right hook it up with another ez connector at the servo arm. use the ez connector at the sevo arm for the final travel adjustments. Don't forget some blue loctite on the ez connector screws.

As far as the bellcrank goes it will work also but it is nine bucks and just adds more stuff to come loose adjust etc.

Dennis