Dual tank selector and high fuel pressure

[425xpedition]

Has anyone heard or seen anybody run high fuel pressure through the tank selector valve. I am going to be needing 50-60# of fuel pressure. Wondering if the selector valve can handle it or if am I gonna to find a different setup.

Also does anybody know the size of the fuel & return line on 1990 crew cab?

[modular93fox]

my factory one from 87 failed. new replacement ones might not
im running about 45psi ish. when it failed fuel would flow through the valve and go into the other tank. well i didnt have the tank hooked up and fuel was just flowing out of the hose like it was cool. i lost about 1/4 of a tank before i realized what was happening. thats my experience, i have not purchased a new one or installed the new fuel tank.
clint

[425xpedition]

What pump were you using?

[modular93fox]

i forgot the part number but s&p mentioned it in their square body ls1 conversion. its off of an lt1 corvette, which means its intank. it looked just like the stock one i replaced it with and the psi is not as high as the factory 99+ but its worked for over a year.