High/Low Beams

1991 Lumina Z34
I never noticed this until tonight. When my low beams are on my two outside headlights light up, but when I put on the high beams the two outside headlights go off and the two inside headlights come on. Is this correct or are all four headlights supposed to come on for the high beams? Thanks.

That's how it's supposed to work...all four don't come on since way back in the days of quad sealed beams.

Thank you.