Inliners International Forums General Discussion Engines 250 head valve spring installed height

This project that i have acquired, is a 14002009 292 block with a 3895052 250 head, Someone has installed new valves put seats in and milled the head. The valve spring seat pressure is too low at 1.890 which is where they were, I believe that is the height for a 292 head What is the correct installed height for that 250 head.