I was just kinda wandering around the garage, looking over parts, and I decided to see if I could clean up the combustion chambers and valves a little. I filled each chamber with carb cleaner to let it soak. I noticed that they weren't holding the cleaner. All but one would be completely empty less than a minute after it was filled. I looked and much of it drained out the exhaust side. Is it normal for them to leak that much? Or are they not seating properly? I also noticed that the valves that were actually hit with my wayward piston leaked the least. Does that mean they're probably not bent?