And I don't see the point of even HAVING it in the trunk----
The rubber line creates more of a fire hazard, and it has to lift more fuel above the tank.
My 67, same pump, I think.....is mounted pretty much UNDER where yours is, so all the fuel lines are out of the passenger compartment
It would have been easy to do except I added extra rubber to the pump / mount, and rubber grommets/ washers to isolate the noise, so this resulted in "vise grips in the trunk" to hold the bolts while I was underneath.
I would think it'd be noiser in the the trunk on a street car, than under..................