As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED ENGINE QUIT AFTER LANDING WITH BOOST PUMP ON. ON GROUND RUN PERFORMING MIXTURE IDLE CHECK, WE FOUND WITH BOOST PUMP OFF, WE HAD .5 INCH MANIFOLD PRESSURE DROP AND WITH BOOST PUMP ON. WE HAD 1.5 INCH MANIFOLD PRESURE DROP. ON FURTHER INVESTIGATION, WE FOUND ICO LEVER STICKY AND ROUGH WHEN YOU MOVE IT. AT THIS TIME NO PROBABLE CAUSE OR RECOMMENDATION. (K)