Usually the insulator is about 3/4 inch thick and protects the carb form over heating causing vapor lock and other issues

You might not have an issue in the cooler temps but it will vapor lock and gag a lot in the hot weather especially if you idle a lot ...like in a parade

Now back to my question. Heat hole should be exposed and does the insulator need to be notched?


1953 3/4-Ton Chevy

In the Stovebolt Gallery
More pix

If it can be built ... It can be fixed.

RB53