Carter BBD 2bbl HEAT Problems

You are on the right track, insulate. The spacer would get you some gains, but the whole engine bay gets heat soaked after shutdown. Try a heat shield under the carb, just something like the fiber gasket material to start. On my slant, the spacer didn't do a whole lot, but the heat shield worked. I was even getting some hard start boiling on really hot days after I did the fuel line mod.