Are there any real Mopar machinests left ???

Holy ****. I would not run those heads no way no how without sending them out to have them looked over and done correctly, no matter WHAT THE COST. The guy is probably pissed that you caught his shitty work. Just think if he used the wrong retainers on the valves too and you drop one at 7K RPM??. Your gunna blow your whole engine up if he did and that will be his revenge..............I wouldn't trust his work as far as you could throw those heads which is not that far at all.

What if the springs aren't set up correctly either. Wrong pressures??

This sounds pretty familiar....... Was it BJR??