CFM Continued...

[Squash]

Yes, the holley was an 850 and it was tuned.  They
squeezed a bit more out of it.

I have never seen anything about the VFI.

Andy

--- Tom Sharpe <twsharpe at mtco.com> wrote:
> Did anyone bother to tune the Holley???  Sharpe..
> 
> Has anyone seen a comparison with the Barry Grant
> VFI??? I think that
> one would be easy to dial in and still a winner...
> 
> Squash wrote:
> 
> > The article is in the may 1999 issue of "Car
> Craft"
> > magazine.  You should buy it!
> >
> > 502EFI ended up with 591HP and 532lb/ft
> > 502 with 850 holley on the same intake got 542HP
> and
> > 524 lb/ft
> >
> > And that is across the RPM range, not just at the
> > peak!  Even with mismatched intake ports (peanut,
> > rectangle, oval) the EFI made more HP and torque.
> >
> > But compared to the holley 850 and a dual-plane
> > intake, they only managed to get less than 10 hp
> and
> > 10 lb/ft of torque.
> >
> > So don't think that any EFI will blow away a carb
> > under all circumstances!
> >
> > Andy
> >
> > --- Walter Sherwin <wsherwin at idirect.com> wrote:
> > > >I just read an article where a 502GM engine had
> a
> > > >single-plane intake with a 4bbl 1000cfm TB on
> it
> > > and
> > > >injectors mounted in the ports.  They installed
> and
> > > >tweaked a 750cfm (or was it 850cfm?) holley
> carb on
> > > >that intake and compared it to the EFI.  The
> EFI
> > > won
> > > >in HP and torque, not to mention starting and
> all
> > > the
> > > >other givens.
> > >
> > >
> > >
> > >
> > > Neat!  Where was this published?
> > >
> > > Walt.
> > >
> > >
> >
> >
>
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> 
> 
> 

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