Sorry to hear about your engine issues. Hang in there! Happenned to us. Thanks to Chuck @ Best Machine in Detroit. You would not believe all the crap he found wrong with the engine. A big name in the business did our motor the first time. My mistake was taking it back to the first shop just like you did. A waste of time and money. Have someone else DO IT RIGHT and forget about it. At least your problems are only with the motor. We had issues with the tranny as well. Thanks to Brewers in Ohio for cleaning up the mess another big name in the business did/didnt do! In both cases the business that mess things royally had a great pitch over the phone. Beware of this. Good luck! Use the winter months to get it all sorted out so you can enjoy your car come the driving season.