1990 270 sundancer fuel issues

[Rapidroy5858]

I have a 1990 sundancer with twin 4.3's it has started to have fuel issues with the starboard engine.
It will normally start up easily and run great until I shut it down,lately when trying to restart it will run for a few seconds then shut down, after several mins of trying it will finally restart and go back to running fine.
I replace the card last year after the old one started flooding had no issues with it.
So far with the fuel issues I have replaced fuel pump,fuel line , and anti siphon valve.
I am wondering if the fuel pick up in the tank could be clogged, or possibly a float adjustment issue with the carb.
Any input would be greatly appreciated.

Also the port side engine runs fine no issues.

Thanks in advance for any help.

 

[Wanderer 290]

Sounds like the carb base is getting hot and boiling off fuel.
When the carb was replaced was there an extra thick gasket between the carb and intake? Was it replaced or possibly not re installed?
The thick gasket serves as a thermal brake.