Ya no worry, we took the plugs out one at a time and made sure of the right firing order as well. Thanks for the concern. I think I may be finally deciding on an Angle Grinder with interchangable disc capabilities so that I can sand instead of grind. Seems thats all my own price range will allow right now. BTW concerning the engine troubles, umm we tried boosting the Malibu and still didn't get enough power it seems to turn over, so if this info can point to anything else that could be the trouble, please let me know. ttyl