Fuel Vaporization Using Eddy Carb -- In-Line Fuel Pump Question

It could be a cool 50 deg day, does not matter. The heat from the engine radiating up far exceeds outside temps.

Also, I was thinking to mount it just upstream of filter, which is just upstream of mechanical pump, and wire it to ignition switch. My thinking is, turn on ignition, pause for a moment, then start. Anything wrong with this setup?