I called to ask about having an engine, that they did not build, put on their dyno and tested. They told me they'd be glad to do it. I took the engine to them and they unloaded it and put it right on the dyno to be done the next morning. The next day they started the process and found my carburetor was a problem so they put one of theirs on and made about 6 pulls on it. It's a 434 SBC and it made 818HP after making a few changes on the tune up. To say I was completely satisfied would be a huge understatement. Joey told me when I called that if it had horsepower in it he would find it and indeed he did. Nicest guys you would ever want to meet and some of the most knowledgeable I've had the pleasure to meet. I would highly recommend them to anybody. I know where to go next time I need something, can't say enough good about my experience.