Jeff, when I had vapor lock issues on Argentine Pass with my 40, Justin from Redline suggested installing an electric in-line fuel pump before the manual pump. He said the manual pump would then act as a regulator, keeping the fuel line pressure to spec, but the electric pump would eliminate the vaporizing issue. My question is this...why do you suggest an in-tank one instead of this seemingly less complicated alternative?
Sascha Steinway TLCA # 20217
1977 FJ40 "Ripper" (because it shreads!)
1988 FJ62 "Dino" OME, now in the hands of my daughter
2013 F-150 "Black Ops"