fuel delivery set up

[boomjuice86]

in tank fuel pump or external fuel pump? just dropped in a 454 with no fuel pump set up on the block since it was originally TBI. truck is an 86 short bed gmc. question is do i set it up with a inline fuel pump or put in an electric in tank pump? basically which set up is better? its not a worked motor just rebuilt, 750cfm carb, pavement pounder. any help on this topic would be greatly appreciated. thanks.

 

[1973c10]

I am no expert on this
That being said I have ran Holley electric fuel pump
on my big blocks from my hot rod go fast motors to my motorhome
I installed them on the inside frame rail back by the tank
and depending on what pump you get and what carburetor you are using
you may need to use a fuel pressure regulator

 

[fussfeld]

If the truck was originally TBI, then is the original fuel pump still in the tank?

 

[boomjuice86]

original set up in an 86 is carburated. old motor had the fuel pump on the block. new motor is a gen 6 454 big block, no fuel pump set up on the block. considered running a frame rail pump just near the tank and enough pressure to get up to the carb with correct fuel amount supply.

 

[highdesertrange]

if you are running a carb I would use a mechanical pump. highdesertranger

 

[1973c10]

original set up in an 86 is carburated. old motor had the fuel pump on the block. new motor is a gen 6 454 big block, no fuel pump set up on the block. considered running a frame rail pump just near the tank and enough pressure to get up to the carb with correct fuel amount supply.

I have gen 6 454 in my motorhome with a pump on frame rail
one on my 73 C10 with a 454 and one on my
75 puller truck with a 454 and have had No problems ever all with carburetor

 

[87scotty]

I have gen 6 454 in my motorhome with a pump on frame rail
one on my 73 C10 with a 454 and one on my
75 puller truck with a 454 and have had No problems ever all with carburetor

Do you regulate and send rest back through regulator?

 

[87scotty]

Reason why i ask i got an 87 im doing a built 454 i have factory dual electric tanks i feel itd be better to stick with them and regulate rather than a mechanical pump!

 

[1973c10]

Reason why i ask i got an 87 im doing a built 454 i have factory dual electric tanks i feel itd be better to stick with them and regulate rather than a mechanical pump!

Here is what I used on my 75 chev truck with dual tanks
http://www.speedwaymotors.com/Holle...gn=CSEGOOGLE&gclid=CITEssW9hdACFQqPfgodyjECug

Or you can use the Holley Carburetor Bypass Style Fuel Pressure Regulators 12-803BP
https://www.summitracing.com/parts/...se1-_-holley&gclid=CJ7jp_jBhdACFcRcfgodcG4LYw

my other 2 ( motorhome and stepside ) have single tanks with no return

 

[1973c10]

Did you get done ??