Bubbaboy

Ok here we go. I have a 2010 GT500 with a 2.3 TVS SC with a new pulley. I was talked into new fuel injectors and a new heat exchanger. I also added Kooks LT headers with an X pipe and a Bassani exhaust. I also added a new throttle body which is causing my car to go into shut down mode. The shop I went to came out and made an adjustment to the throttle body. I'm afraid to take the care anywhere. The tech guy told me the throttle body comes tuned out of the box and this one was tuned wrong. He said he retuned it and I should be fine. I'm afraid to take it around the block. Is this normal? Or do I have a much bigger problem?

Thanks,
JD