Tri-power issues

[KULTULZ]

The only true solution is an electric fuel pump, either retaining the mechanical pump or not.

You need to use phenolic carb spacer(s) as mentioned, a phenolic spacer for the fuel pump (it draws a lot of heat from the engine) and insulate fuel lines in the engine compartment (may look like crap).

That aluminum air cleaner is cast alum and holds a lot of heat. It also acts like a tent to not allow heat to escape.