[RPerrenoud]

Well I think I have killed my engine, I put the 16cm exhaust housing on tonight went out to see how much it lowered my EGT. Went out south of town to run the truck up out of the river it is a good climb, the first run I noticed exhaust temps stayed lower longer eventually they would cimb and I would have to back out of the throttle. The second run I turned my propane on and about half way up the hill, the engine started knocking and power dropped. I pulled over and stopped and vapors just pouring out of the crankcase vent and engine running exstremly rough. I do believe I have killed one piston.