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Question: is changing from the higher pressure Holley fuel pressure regulat=
or (1-4 psi) to the lower pressure regulator really as simple as changing t=
hat cone-shaped spring under the cover?
Somewhere along the line, it appears that I got the wrong Holley fuel press=
ure regulator - the higher pressure one. Adjusted all the way to the low e=
nd, I had 4.5-5.0 psi of fuel pressure. For years, that was just fine with=
my SUs, so I just left it.
But now I have switched to a different set of SUs and they're bleeding fuel=
all over the place (out of the vent hole in the bowl covers and out of the=
jets). So I dug around and found that I had a spare Holley fuel pressure =
regulator. And it had a different color spring (red vs. silver). So on a =
hunch I switched the springs. Voila! 2.5 psi.
Is it really that simple??
Scott B.
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<p class=3D"MsoNormal">Question: is changing from the higher pressure Holle=
y fuel pressure regulator (1-4 psi) to the lower pressure regulator really =
as simple as changing that cone-shaped spring under the cover?
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Somewhere along the line, it appears that I got the =
wrong Holley fuel pressure regulator – the higher pressure one. =
Adjusted all the way to the low end, I had 4.5-5.0 psi of fuel pressure.&n=
bsp; For years, that was just fine with my SUs, so
I just left it.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">But now I have switched to a different set of SUs an=
d they’re bleeding fuel all over the place (out of the vent hole in t=
he bowl covers and out of the jets). So I dug around and found that I=
had a spare Holley fuel pressure regulator.
And it had a different color spring (red vs. silver). So on a hunch =
I switched the springs. Voila! 2.5 psi.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Is it really that simple??<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Scott B.<o:p></o:p></p>
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