Hate to be a broken record...but I've fixed a bunch of heads with blown out bowls by using the CORRECT 50* valve job. I don't like the bowl to be over 88% of valve diameter with a 45* seat. I know Chad Spier does almost 92% on some of his 23* SBC stuff and he makes it work. He does own a wet flow bench and I don't.
If your bore is doing some shrouding (which I doubt) you can notch the bore and fix most of it.
My big ***** about the 2.08 valve is you can't get the port big enough to support that valve. All it does is increase low lift flow numbers. That's almost never good in a restricted port situation.
Did the exhaust port ever get flowed? If they raised the exhaust, you may have an issue with the exhaust port being too good for the intake port.
Just thinking out loud.