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Now to the fuel system.  I needed to trim the neck a little so I used my coping saw. It did a nice job.

Then I did some tapping and threading! I got a great set of 1/8. 1/4, and 3/8 inch NPT tap and dies at Harbor Freight on sale really cheap.  Sonex recommends running a tap in all of the tanks fittings to make sure there is no plastic in there from the molding process. In addition my brass finger strainer had all kinds of crap on the threads.  The die cleaned it up and made it nice and shiny.