fuel pump questions

The 1/4 inlet you're seeing is 1/4 NPT size. NOT 1/4 inch. Waaaay bigger than 3/8 fuel line. I'm supporting 562 horsepower with a Carter mechanical pump (1/4NPT inlet/outlet). Using 6AN fueline and a 3/8 pickup. Shifting at 6600 with no signs of starvation......yet.

Did recently hear the Carter pump probably won't keep up the pressure real long. Something about the diaphragm weakening over time. Hope it ain't so!