A good insulator gasket under the carb, make sure the exhaust manifold on the passenger side does not have a stuck EFE valve, you can also insulate and check routing of fuel line under the hood to reduce heat transfer to it.
Running a performer by edelbrock. Don't see an EFE valve. But did re-route the fuel line and it helped a lot. Tremendously as a matter of fact. Now I have to figure out why it cut out after WOT running the bowls empty, then started again before I stopped.