[G.M.]

I put a small fuel return back to the tank right after the pump. I used
if I remember about a 1/16" orfice hole to restrict the amount returned.
To much return will starve the engine at high speeds. The return allows
cool fuel to flow through the pump at idle cooling the pump. One picture
shows parts to have a temperature controlled fan blow air on the pump.
The other picture shows the return line into the filler neck. The return
line has been on for a number of years and still works. I tried 4 times
and pictures didn't upload, will try to add them later. G.M.