Engine now smoking after new valve seals

standup303 said
I had ZERO smoke before I popped the heads and took them to get the seals cut and redone

So, what has changed between then and now?
You had the heads off, and put the heads back on.

standup303 said
Get the car back together, and it’s smoking like crazy out of the exhaust.

Blue smoke or white/gray steam?
My guess? Head gasket(s).
Run a compression test, and pressurize the cooling system to see if you can confirm the leak before you tear it all down again.