Custom Slant6 carb heat shield
Careful how much thickness you build up in your carb mount gaskets; you can lift the carb too high for the choke to be able to close all the way, then you'll have to make a new choke pushrod (easier if you start with the № 1232
electric choke kit). And lifting the carburetor up like that also affects your throttle linkage and your automatic transmission kickdown linkage, as well as hood clearance to the air cleaner.