Hi all. Gas is leaking from the carburetor gasket in my 1990 Conbrio. I don't know much about motors, but my brother asked me to post before I leave work for the day. What's the standard procedure with this issue, a rebuild? Our two options are make an appointment with the service center at the boat store or have a super handy mechanic friend do it. Many thanks in advance for any wisdom. Here's the pertinent info:

PCM Ford Windsor 351 V-8, 240hp, model # PLD-PR-R12/PP, Holley carburetor. Here's some pics. The leak is circled in the first one.

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