[rpatton3]

Would something as simple as an insulator gasket or spacer under your carb help?

It would be simpler than alternatives being discussed. 40 years ago, the fuel lines got wrapped with foam insulation, sometimes relocated, and an electric fuel pump and 99% of the problems were solved.

Is the ram air a filter with two hoses going under the front end of car like the 1960's Olds 442?

You have my sympathy; it is a hard problem to isolate.

Russell