I forgot to mention that our Holley is of the Red variety. We run about 2.5#
pressure to STROMBERG carbs, with RB needles (unmodified)
Joe (A)
> > I wonder if your Blue pump is simply too large to adjust down to 3 PSI at
> > our flow rates?? I've heard the buzzing you describe on occasion,
> typically
> > on
> > startup. As a rough guide I use 3-4 gallons in a twenty minute race.
> > Steve Smith in Las Vegas
> >
>
> Amici:
>
> I sure agree with this. This was one of our gremlins a few years ago.
> Holley offers two basic fuel pumps, and the low end of one is right about
> the high
> end of a maximum ideal fuel pressure...especially for SUs. It was nearly
> impossible to 'adjust' it to that low end of the pump's pressure. We
> replaced it
> with the lower pressure pump. I run about 1 1/2 pounds of pressure now, and
> it seems to work fine.
>
> Bill Dentinger
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