Got the 440 fired up today. No smoke and pretty smooth idle with a little lope. I put my scope in the spark plug hole and didn't see any marks on the flat top pistons. It must have low run time because there is still some shine on the piston. Not sure what was done inside. The guy I got it from found some papers from the previous owner. It has a Edelbrock Performance kit with a 2192 cam, intake and carb. Probably puts out about 427 ft lbs torque. Its going in my 64 D100.