360 block limits

No one should be sending a car out of a shop without a basic usable tune in it. If they are doing that, then they have no business fitting the stuff.
It's not his decision. The customers refure the tune almost every time.....but I'll say this. He's in way over his head and won't admit it. He know less about EFI than I do. I've ridden over and gotten him out of more than one jam.