they machined and built the block i'm running now and i've them do dyno tuning recently. They're good guys who try to do right by their customers and they know a lot about their business. Chuck has done most of my tuning recently and impressed me with his skill. Johnny built my engine and went really out of his way, even giving/selling me parts meant for his personal Z to help make my car come together faster. i take all the work i can't do myself to them.