I am swapping my 305 for a mild 350. I bought a Holley Blue Electric Fuel Pump.

I want to install the fuel pump but i have 4 lines coming out of the fuel tank. Which line is the feed line?




My next question I am going from the fuel pump to a fuel pressure regulator do i need a return line?

 

From left to right up close to the tank: Vent, vapor, return, supply.

Quote:

Originally Posted by endo666

My next question I am going from the fuel pump to a fuel pressure regulator do i need a return line?

Depends upon what type of regulator you use. A dead-head doesn't need a return line. A return-style needs a return line.

If your car is an HO, then it should have an in-tank electric pump. Do you know whether or not that is true? If it is, I hope you have plans to drop the tank and remove it.

 

I guess I should also say if I was installing a mild 350, I wouldn't bother with a Holley Blue pump.

 

thats what i needed to know

my current engine has a mechanical fuel pump. did they do electric on a 84?

thats what i here but i wanted something that was good quality too.

 

If your car really is an HO, VIN code G, then it should have an in-tank electric pusher pump to the engine-mounted mechanical.

I ran a Carter 6626 mechanical with built-in return on my mid-13-sec ZZ4 for years with no problems. Didn't even have the benefit of the in-tank electric pusher.

Lost count how many people I've heard of who have had problems with a Holley Blue.

 

ill take a look tonight at my vin. it is a HO though.

Well ill give the holley a try then and see if i have any problems. i can always switch back to a mechanical as long as i plug the old fuel lines so no dirt and gunk get in them.

 

use a return style regulator,and wire the holley with the holley or painless wiring fuel pump relay kit and you wont have any issues..also mount the pump as close and as safe to the tank that you can and just a little lower than the lowest part of the tank, this way you can pull a siphon and the pump will not work as hard to pull..

 

i have a good idea of where i want to mount my pump. just have to get it done.

the pump came with a pressure regulator i think im going to try it. but i plan on leaving all of my existing fuel lines just in case i need to change my set up later.