Fuel System Design - from the ground up

[ozstang65]

Ok, here's the story. My '65 is approaching the final stages of its complete rebuild - among other things it's time for the fuel system. Originality is not even close to being an issue here!

Initially I will be running a 4 barrel Autolite but eventually I will be stepping up to EFI so I am designing the fuel system with this in mind.

Mild 302, say 300hp for starters. From this website, which sounds fairly knowledgeable, I've decided to use a return line style fuel system with 3/8 lines for flow in both directions.

Now, here's my questions, don't feel as though you have to answer them all, any help will be appreciated.

1. I need a return style regulator. Can anyone recommend a make and model? I would prefer to get a unit which can handle EFI as well as Carby regulation duties if that is possible.

2. In my tank design, I am inbuilding a surge tank to cope with EFI pump duties. My plan is to use a low pressure high volume pump to keep the surge tank full, but, before I get the EFI, I want to use this pump to feed the carby.
Can anyone recommend a LP/HV pump that will do this, quietly?

3. Is it better to use submerged or external pumps? Make? Model?

Thanks in advance

 

[84convertablegt]

ok, i will answer 1 question for you. it is better (if you can) to use submerged pumps just because the fuel keeps them cooler and makes them last longer. that being said, good luck finding them. most aftermarket pumps for an application like the one your doing will be external.

 

[ozstang65]

I have had a look at an EFI pump from a Falcon which I could possibly adapt to suit, although it's not deep enough to use it's integrated level gauge. Might have to take a trip to the wreckers and have a look at some others.