the clutch fan is in the trash, it got fubbered pretty good. The engine was fully built before it was dropped in, but I dont' remember did I bore it over or just hone it? Dam thing been running hot since it came to life. I had seriously considered a blown head gasket, but it runs too dam good for that. Besides, I would be burning coolant, wouldn't I? the timing IS retarded a touch, as it has a fairly hot cam, and I found that cutting the advance down a bit saved me about five degrees. But I am loosing power because of it. As for the carb jetting, it is actually running a bit rich. I was thinking to do a compression check, that would confirm the head gaskets yes?