Thanks - OEM head gaskets used and heads machined. The shop still has the car - Once the HGs were changed they had called me to pickup the car (they had test drove the car and no more overheating problems). I came the next morning to pickup and when they took it out earlier in the morning it was starting to overheat. They then spent an hour burping (alternating between reving and idling and added coolant as needed). When I went to take the the car it overheated after a few minutes and I just turned around and gave it back to the shop.