Picked my veccy up yesterday due to chain guide failiure! 8 inlet valves replaced and so on! but my niggle is, its smoking when i pull away or when i idle the car and revit! would this be due to overfill on the oil (cant realy check the oil because im parked up hill) or could it be somthing more sinister? valve guides were ok, and so were the stem seals. Any pointers???