Holley Fuel Regulator ?

[nspctr1]

Still fighting this damned fuel issue. I believe I've got it now narrowed to the fuel pump being the issue. I replaced the old electric pump with a new Holley Blue pump and regulator. It was set at 8# so I tried to reduce it to about 6# which is about optimal for a Edelbrock carb. The problem is, the regulator will not drop below 7#. This pressure continues to blow fuel from the needle valves etc. WTH is going on with this thing? I rebuilt my edelbrock and then replaced it with another operating carb and it responds the same way.
I'm out of ideas.

Anyone?

Thx

 

[brandon61]

I have used a Carter 6 psi street pump with a Holley standard fuel pressure regulator to cut back to 4psi. Our Edelbrock also would not take higher fuel pressures.

 

[ingomar]

I'm surprised your regulator won't let you go below 7#; the ones I've used all will. I work in an industrial enviornment, and we check gauges routinely. You might be surprised at the errors we find. So try another gauge, or find someone with a test gauge to check yours against. Like Brandon says, even 5-6 psi may be too much for an off-roader with an Edelbrock carb.

 

[nspctr1]

Have everything plumbed in and fired up the 40 ran good for abt 30 seconds then back to pushing fuel through carb orifices WTH is going on 2 carbs, new pump etc and still have same problem

 

[brandon61]

The Holley Blue Pump is a high volume, high pressure pump for race applications. Even at 6 psi, we pulled our Edelbrock off three times to check and lower floats. Dropping below 4 psi solved the flooding problem. You might try a Facet 2-4 psi electric pump. Most auto parts have them.