Larry A Hoy wrote:
>
> Bob, Kelvin; I just took a look at my stock intake manifold and the stock
> Rochester 4 bbl carb. I can say the stock manifold is dual plane. The
> carburetor is mounted so the smaller bore primaries are forward and the
> larger bore secondaries are to the rear. I assume the left side of the
> manifold supplies fuel to the left cylinders while the right side
> supplies fuel to the right cylinders. Of course the secondaries only
> working under acceleration. But then what do I know, before this morning
> I didn't even know the difference between a dual plane and single plane
> intake manifold. The great thing about this list is that I am learning
> all the time.
> On Fri, 27 Feb 1998 12:21:42 -0600 Robert Allen <boballen@sky.net>
> writes:
> >My only question with Kevin's response is I got the impression that the
> split
> >was between the secondaries and primaries of a four barrel. I don't
> believe
> >that to be the case. The carb is splt right/left although each side may
> serve
> >runners on both sides of the 'V'.
Duh!. I just got to move my V8 engine to my new house. In so doing I
noticed the big letters on the manifold. Please ignore my original
comments regarding "dual plane" manifolds. My drivelings were a
description and design of the "dual port" manifold, not the "dual
plane". Oops.
Kelvin.
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