DIY_EFI Digest V4 #605

[Gary Derian]

A dual plane intake is made that way  to get good intake signal to the carb,
i.e. each side of the carb gets every other intake pulse.  If you have TPI,
you don't need that balanced flow and can benefit from the more direct
single plane designs.  A high performance single plane will work well on
even a mildly tuned engine.

Gary Derian <gderian at oh.verio.com>
>
> I too was pondering this...I'd think that it really wouldn't matter if the
> carb manifold was operating wet flow or dry flow...VE and Cylinder Filling
etc
> would be the same regardless...and the MPI will of course improve the fuel
distribution...
>
> However...in talking with Arizona Speed and Marine they suggested that a
> single plane is better suited for a dry flow intake...even with a mild
cam...
snip
> What am I missing...I would think that this new Edlebrock Performer RPM
Air
> Gap would be the best street manifold to convert to MPI for use with
milder
> cams such as above...the power band is 1500 to 6500 or so for a
350ci...and
> the Air Gap design should help to cool the now dry air flow that is
missing
> the cooling effects of the fuel...it should be even better if a heat
reducing
> coating is added to it's bottom...and if it's used with a lifter valley
shield...
>
> Shouldn't it?
>
> Am I missing something?
>