340 issue after camshaft change

I’ve had the engine apart 3 times now verifying installation. I’ve done valve adjustment 4 times now. I’ve verified that I’m not 180 degrees off as many times now. I’ve drained antifreeze 3 times now and will be disassembling it for the 4 th time in the future. I did not find anything glaringly wrong any time I had it back apart.
This engine should at least run ok without degreeing it. It doesn’t.
I do not have it in me to continue to troubleshoot this camshaft any longer. What’s wrong with it? I don’t know but I suspect it’s ground wrong or maybe it’s a marine camshaft and ended up in a auto box. I no longer believe this is an installation issue but a manufacturing issue.
The car is up on my lift with the cover on and I’m walking away from it for a while. When I get over the disgust, I’ll take it back apart and remove this camshaft and install a different one.
Thanks much
Cam pt# or grind# should be etched or stamped on the cam somewhere. Does that matchwhat you paid for. A call to the manufacturer would be inorder. They do not want a bad reputation getting spread, so should offer some suggestions or replace the cam.
Small block and 351 Fords can have the confusing firing order issue, but that is not the case here.