I'm stumped and could use a hand with my IO-360 in my 1978 M20J. I'm collecting small particles in my fuel servo strainer. Occasionally some sneaks through and clogs up a fuel injector -- in the process of diagnosing this, it's clogged injectors over a half-dozen times. The particles are small and mostly ferrous, and only collect in the servo. The gascolator screen is completely clean. A few things we've eliminated. Whenever my mechanic cleans the injectors and screen, he runs g