I looked over a few old posts about this but im not sure
so the stock fuel pump for a '90 5.0 is 88lph
if i get a high flow fuel pump i know i will need a pressure regulator so my question is, do i need one or does the car already have a stock one?
thanks

 

Of course the car has a stock one. It's on the fuel rail with a vacuum hose attatched to it toward the passenger side near or underneath the throttlebody.

 

yea im pretty sure that its the big red thing staring right at ya when you look behind the throttle body

 

Big red thing? Never seen a red one!!!!!

 

Mine wasn't red either it was a really dull gold color. Robbery!

 

will the stock one work with one of those 190 or 155 fuel pumps or do i need a new pressure regulator?

 

yes it will work. the pressure should stay the same, bigger pump only flows more, without any other supporting fuel mods your just pushing more through the return line.

 

+1 I run a Walbro 255 High Pressure fuel pump with a stock fuel pressure regulator. I have used that same regulator on my large nitrous shot, when I had a blower, and when I had a blower and nitrous. They work well.

 

great, thanks everyone
im going to get a high flow bbk from 50resto then

 

so what exactly does a upgraded fuel pump help if all your doing is shooting more fuel.....is this a dumb question or am i just not getting something because it sounds like you would push more fuel but not really see a difference out of it??? maybe a lil worse mpg or something ....man i feel stupid asking this question hah