The fuel selector valve is pretty straight forward. LEFT/RIGHT/OFF. a pull knob to get to the off position with return lines. Fitting the valve is another story. The valve sits at a slight angle with respect to the panel an transitions to the center console. It is required to dismantle the valve to fit the barbed fitting at a certain angle both on the left and right and on the top.
Once this was done a test fitting was done with the composite housing that makes up the dash.... it did not fit.
Ideas were tossed about like tapping the fitting so they would seat lower (tried it, minimal help). Heating the composite to make room for protruding fittings. (did it, but I did tnot ake it too far so as to not distort the composite). Finally, an email to Sling (TAF) to see what the deal was. They admitted it won't fit as is and said they grind down the corners of each brass fitting and sand the composite away.
So I ground the corners of the brass fittings and used my own heat method on the composite because I was not comfortable sanding the material away