This is Not rocket science.
This is the basic way.
The delux version would be to get it closer/onto the exhaust manifold. (this is kinda sorta against it)
The supreme version would be to put it into a "hotbox", simple sheetmetal box designed to capture more heat.
The "golden perfection" would be to use steel tubing as well, as the copper tube is losing heat at a rate faster than the steel would....
Point in fact though, this has worked fine for oh, the last 20 year or so...with no heat shield or carb spacer either. When did the spacer go missing...I don't remember when...
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