Question about ford crown victoria fuel tanks?

I have a 2001 crown victoria police interceptor. I'm trying to install a new fuel tank. Problem is that the new tank has a different style hole on top for the pressure valve regulator. Can I just use the newer style regulator that will fit the new tank or some kind of adaptor for the stock valve? Does anyone know where I can find a tank like the original, it has a recessed hole with tabs for that valve?

You likely bought the wrong tank. See a Ford dealer and check what should go to your car. The police Crown Vics are different from the stock Vics.

https://www.partsgeek.com/ss/?make=ford&model=crown+victoria&year=2001&category=Fuel+Delivery