6066 (1960-1966) GMC Truck Club

6066 (1960-1966) GMC Truck Club (https://6066gmcclub.com/index.php)
-   GMC V6 and V12 Engines (https://6066gmcclub.com/forumdisplay.php?f=9)
-   -   Is Electric Fuel Pump Necessary with Holley 500? (https://6066gmcclub.com/showthread.php?t=49650)

GBCustoms October 14th, 2016 06:50 AM

Is Electric Fuel Pump Necessary with Holley 500?
 
Hey guys, can the stock mechanical fuel pump on my 351E keep up with the Holley 500? The PO put a spare Holley he had lying around the shop on it, but never got to test it. I am hoping to get my spark issues lined out this weekend and start this beast up. Should I go ahead and plan on upgrading the fuel pump too?

FetchMeAPepsi October 14th, 2016 01:28 PM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
The stock fuel pump will keep up with the holley just fine. You don't need an electric unless you just prefer it.

Funky61 October 14th, 2016 03:00 PM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
The recommended pressure is 5-7 for the Holley, so like Fetch stated, you should be fine.
I kept having new fuel pumps go bad on me (maybe shelf stock was too old?) so I went electric.

TJ's GMC October 14th, 2016 03:13 PM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
I prefer electric, but the stock should hold up. :thumbsup:

GBCustoms October 18th, 2016 03:57 PM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
Awesome! Thanks guys. I wasn't getting any fuel and the pump looks rather new. So of course I take the pump off, manualyl pump the lever and can feel the suction on the line.Check the lines, They are Clear. Check fuel level in the tank, Plenty. Why no fuel?:banghead: So I finally use my brain and start with the simplest answer. The PO had the fuel lines reversed on the pump.:pullinghairout: I'm an Idiot!:teehee:

surfamtn December 18th, 2016 12:10 AM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
Actually.... I think you just pointed out that the PO was the idiot and you fixed his mistake!

kchampagne December 18th, 2016 12:51 AM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
I've been there done that!

1972RedNeck December 18th, 2016 01:28 AM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
Quote:

Originally Posted by GBCustoms (Post 64167)
Awesome! Thanks guys. I wasn't getting any fuel and the pump looks rather new. So of course I take the pump off, manualyl pump the lever and can feel the suction on the line.Check the lines, They are Clear. Check fuel level in the tank, Plenty. Why no fuel?:banghead: So I finally use my brain and start with the simplest answer. The PO had the fuel lines reversed on the pump.:pullinghairout: I'm an Idiot!:teehee:

So does the stock pump keep up?

GBCustoms February 8th, 2017 04:12 PM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
sorry for the late reply! Haven't had it on the road yet, but it keeps up just fine when i am running the motor sitting still.

Quigley February 9th, 2017 12:58 AM

Re: Is Electric Fuel Pump Necessary with Holley 500?
 
If your float is set right, and your pump is good you won't have any problems. Dave :ok:


All times are GMT +1. The time now is 11:36 AM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.