Valve truble

There is no question about whether or not one can get 2 or 4 groove exhaust valves.
My comment was, I have never seen a set of two groove exhaust valves in a set of factory assembled heads that didn’t have rotators with them.

Maybe some came that way, but I have never come across that.

Nonetheless, if the OP has the tip heights evened out, spring heights correct, and adequate retainer to seal clearance........ it doesn’t matter if he got there with 2 or 4 groove valves.