Ron Lee
Well Known Member
After about 80-90 hours on a rebuild O-360, 9.5:1 pistons, carbureted, one mag, one Lightspeed ignition I removed the lower aircraft plugs to check them during my condition inspection. What was odd is that the normal lead deposits were missing.
My guess is that the port/polishing/flow matching that I had done on the Millenium cylinders, which now allows me to cruise at peak or lean of peak (<75% power), is responsible for this improvement.
My guess is that the port/polishing/flow matching that I had done on the Millenium cylinders, which now allows me to cruise at peak or lean of peak (<75% power), is responsible for this improvement.