I would like to give a thanks to Weber racing for the great machine work and repairs to my Stage 2. I recommend them to anyone in the Buick community for engine work. I also would like to thank Cal and Holly Hartline. There were a few bumps in the road, but they are dedicated to service and making sure things come out correctly. I would recommend Cal for his expertise in the XFI world. My car went faster then I expected first time out with very little effort. These are two good vendors for sure and I confess I am not the easiest guy to work with at times. Thanks again!