Ah yes, I'm reminded of taking apart cleaning, painting, and reassembling the quadrants in the A-T6.  Throttle, mixture, and propeller.  Two quadrants, one in the front cockpit, the other in the rear, connected by link rods.  We didn't mess with the engine though.  My neighbor sent it out and had it rebuilt.  It came back in this giant shipping container and we installed it.  I remember cleaning and polishing the exhaust manifold heat shields, but I guess I wasn't around for the fuel side of it.