Water intrusion

I have a 1988 Chris-Craft 422 Commander tournament edition. When it's not raining the hall stays bone dry if it rains hard a lot of water does come in. I know it's not coming in from any of the railing and the headliners are all original and are all perfect so there's no water coming in from there I know it's coming in from the cockpit. I high pressured all the holes that I can find and yet it still comes in when it rains hard.

Any suggestions or help or tips is most appreciated.

Thanks Kent