Lose the fuel tubing on the trhottle side as well, it looks like at nuetral the throttle spring is fully compressed. When you hit brakes its gonna bind in the carb slide and over stress the servo. Cant tell but it looks like your running scaretronics servos as well. Itll burn up fast that way.
Also grab an aluminum servo horn for the steering, unless you have your servo saver set ultra soft itll break or strip.