compression on all eight cylinders is fine it doesn't smoke when you crank it up or when its just idling only when you get on it a little engine runs smooth has decent power but your right with the rings because wouldn't it smoke only when you you first start it up and then quit if it was the valve seals thanks for the advice and does anyone have any clue how much it should cost if i pull engine myself then take it to have it rebuilt with new hydr. roller cam, lifters, timing chain, rod, crank, cam bearings, and all other necessary components including machine work on block and heads with standard 3-angle valve job hopefully just honed and reuse stock pistons basically just a stock rebuild and labor.