How much fuel pressure?

my 1967 dart, charger factory service manual. 6 cyl pump model ms-3674s 3 - 1/2 to 5 psi. V8 273 - 318, pump model ms-3962 5 to 7 psi. V8 383-426-440, pump model ms-3672s 3-1/2 to 5 psi. all are carter brand.